Question

Find the solutions of the system y = –2x – 1 and y = 3–x–1. What are the x-coordinates of the solutions? Choose all that apply

A. 1
B. 0
C. -1
D.-2

Answer 1

y = -2x - 1
y = 3 - x - 1......y = 2 - x

2 - x = -2x - 1
-x + 2x = -1 + 2
x = 1 <==