Solving Linear Equation in 2 Variable

Goal

1. Calculate one variable with the other variable

2. Evaluate expressions

How to Solve Linear Equations in 2 Variables

Situation 1: Directly Solve

Method: Plug that value into the equation and solve for the remaining variable.

If 2x+3y=2 and x=3, what is the value of y ?

https://chat.mathsolver.top/shared_chat/e8310d5f-5c59-4564-b131-2191e9a51ac3

If 4x - 3y = 10 and y = 2, what is the value of x?

https://chat.mathsolver.top/shared_chat/71fedee1-b3c0-4f49-847d-c86c088a59c0

Situation 2: Solve for the Unknown Variable

Method: Simplify the equation and solve for the other variable.

If 2x+1=5, what is the value of 8x+4 ?

https://chat.mathsolver.top/shared_chat/7c410901-5c63-42d0-95d8-89e525bc68e6

Have you mastered this knowledge point?

Try challenging problems Here!