Question

What is the first step to solve the following system of equations using substitution?

Answer 1

Answer:

Solve one of the following equations for x or y and then substitute the answer to that equation into the second equation.

Step-by-step explanation:

Given the system of equations:

$x-y=7$

$2x-y=17$

You could solve either one of the given equations but for this question we will solve the first equation.

$x-y=7$

Solve for x

Subtract y

$x=5-y$

Now substitute the answer for the first equation into the second equation.

Hope this helps.