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Brian McLogan
Inverse of a linear equation with fraction
π Learn how to find the inverse of a linear function. A linear function is a function whose highest exponent in the variable(s) is 1. The inverse of a function is a function that reverses the "effect" of the original function. One...
Why U
Algebra 57 - Dependent Equations and Systems
Some systems of linear equations contain one or more equations which don't add any new information to the system and are therefore redundant. These equations are said to be 'dependent'. In a system of two equations, it is easy to spot...
Brian McLogan
Solving a one step equation using multiplication on fractions
π Learn how to solve one step linear equations. By one step we mean equations that take one step to solve. The one step is the inverse operation needed to isolate the variable such as addition, subtraction, division and multiplication...
Brian McLogan
Solving a one step equation by subtracting with a negative
π Learn how to solve a one step equation. An equation is a statement stating that two values are equal. A one step equation is an equation whose solution can be obtained by performing only one step of operation on the equation. To solve...
Brian McLogan
Verifying two linear equations are inverses of each other
π Learn how to show that two functions are inverses. The composition of two functions is using one function as the argument (input) of another function. In simple terms composition of two functions is putting one function inside another...
Brian McLogan
What are Additive Inverses
π Learn all about the processes and definitions for solving linear equations. You will gain a better understanding about the vocabulary and steps used to solve liner equations such as how to isolate an equation and apply inverse...
Let's Tute
Solving Pair of Linear Equations using Substitution Method
This video explains how to solve pair of linear equations using substitution method in this video. It provides step-by-step instructions and an example to show how to substitute equations and solve for X and Y. It also emphasizes that...
Brian McLogan
How to solve by graphing a system of linear equations by graphing
πTo solve a system of equations means to obtain a common x-value and a common y-value that makes the each of the equation in the system true. To solve a system of equations by graphing means to obtain the point of intersection (if any)...
Curated Video
Determining No Solution in a System of Linear Equations by Graphing
This video lesson teaches students how to determine if a system of two linear equations in two variables has no solution by graphing. It explains the concept of slope-intercept form, where the slope and y-intercept of an equation can be...
Brian McLogan
What are equivalent equations
π Learn all about the processes and definitions for solving linear equations. You will gain a better understanding about the vocabulary and steps used to solve liner equations such as how to isolate an equation and apply inverse...
Brian McLogan
Solve a System of Linear Equations Using Elimination
πLearn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves...
APMonitor
Solve Linear Equations with Excel
Excel MMULT and MINVERSE functions are used to solve systems of linear equations such as A * x = b by inverting A and multiplying by the right hand side (x = A^-1 * b).
Let's Tute
Problem Solving of Pair of Linear Equations based on Substitution Method
In this online video tutorials Pair Linear Equations problem solving with cross multiplication method
Zach Star
Dear linear algebra students, This is what matrices (and matrix manipulation) really look like
Dear linear algebra students, This is what matrices (and matrix manipulation) really look like
Brian McLogan
What do you need to know to solve a system of equations using elimination
πLearn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves...
Let's Tute
Solving Pair of Linear Equations using Cross-Multiplication Method
This is a video tutorial on how to solve a pair of linear equations using the cross-multiplication method. The tutorial explains the formula for finding the values of x and y and provides a simple trick for remembering the formula. The...
Why U
Algebra 49 - Three Variable Systems in the Real World - Problem 1
Algebra 49, 50 and 51 present three real-world problems which can be solved using systems of three linear equations in three variables. This chapter shows how prices of three individual items can be determined, given three combinations...
Brian McLogan
ACT SAT Prep How to determine the missing value of a quadratic given one solution
ACT SAT Prep How to determine the missing value of a quadratic given one solution
Brian McLogan
Learn to graph a line in slope intercept form
π Learn how to graph linear equations written in slope intercept form. When given a linear equation in slope intercept form, (i.e. in the form y = mx + c, where m is the slope and c is the y-intercept). We first plot the y-intercept and...
Curated Video
Special Systems of Linear Equations
In this video, the teacher explains special systems of linear equations and how to identify the number of solutions and classify them without solving. The video covers the three types of solutions: one solution, no solution, and...
Curated Video
Determining the Number of Solutions in Linear Systems
In this video lesson, the teacher explains how to determine the number of solutions when solving linear systems of equations. The lesson covers three different methods: graphing, solving algebraically, and considering the system in...
Brian McLogan
Learn to solve a proportion in two different ways ex 9, 5/2n = 3
π Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Why U
Algebra 50 - Three Variable Systems in the Real World - Problem 2
Algebra 49, 50 and 51 present three real-world problems which can be solved using systems of three linear equations in three variables. This chapter shows how the parameters of an equation for a parabola can be determined, given three...
Brian McLogan
How do you solve proportions
π Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...