Solving Systems of Equations using Substitution - Concept

Concept Concept (1)

A system of equations is two or more equations that contain the same variables. Solving systems of equations by substitution is one method to find the point that is a solution to both (or all) original equations. Besides solving systems of equations by substitution, other methods of finding the solution to systems of equations include graphing, elimination and matrices.

Sample Sample Problems (8)

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Solving Systems of Equations using Substitution - Problem 1

Solve using substitution. Check your solution.

y = 3x + 1
y = 2x − 3
Problem 1
How to solve a system of equations using substitution when both equations are in y=mx+b form.
Solving Systems of Equations using Substitution - Problem 2

Solve using substitution. Check your solution.

x = 4y − 2
2x + y = 14
Problem 2
How to solve a system of equations using substitution when one variable is already isolated.
Solving Systems of Equations using Substitution - Problem 3

Solve using substitution. Check your solution.

-2x + y = 8
3x + 2y = 9
Problem 3
Math homework help video explaining how to solve a system of equations when neither equation has an isolated variable.
Solving Systems of Equations using Substitution - Problem 4
Problem 4
Solving a system of equations using substitution when both equations already have y isolated
Solving Systems of Equations using Substitution - Problem 5
Problem 5
Using substitution to write and solve a system of equations to model a word problem
Solving Systems of Equations using Substitution - Problem 6
Problem 6
Solving a system of equations using substitution when one variable is already isolated
Solving Systems of Equations using Substitution - Problem 7
Problem 7
Solving a system of equations using substitution when neither variable is isolated
Solving Systems of Equations using Substitution - Problem 8
Problem 8
Solving a 3 x 3 system of equations using substitution