Question

Solving systems by substitution

-2x+y=-1
4x-2y=2
Give step by step expiation

Answer 1

All solutions

Explanation:

Move the y from one side onto the other

-2x+ y= -1

+2x +2x

y= 2x -1

4x- 2(2x- 1)= 2

4x- 4x+ 2= 2

0= 0

All solutions