Question

Explain how you use substitution to solve a system of linear equations.

Answer 1

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

Answer 2

Answer:     Step 1 : First, solve one linear equation for y in terms of x .

   Step 2 : Then substitute that expression for y in the other linear equation.

   Step 3 : Solve this, and you have the x -coordinate of the intersection.

   Step 4 : Then plug in x to either equation to find the corresponding y -coordinate.

Step-by-step explanation: MARK ME AS BRAINLIEST PLEASE PLEASE PLEASE!!!