Question

Kay solves the following system of equations using the substitution method.

y=-4x+2
3x-y=9
What is the single variable equation she solves after substituting

Answer 1

Explanation:

Substitute y=-4x+2 into 3x-y=9

3x-(-4x+2)=9

3x+4x-2=9

This is the single variable equation she solves after substituting.

(Note: It could be either of the bolded it depends if you want it distributed already or not)