Question

Solve the system.
y = 2 - x and y = 4x + 7

A. (1, 1)
B. (1, 3)
C. (-1, 3)
D. (-1, 1)
E. no solution

Answer 1

C.

Answer 2

y=2-x
y=4x+7
-----------
0=2-7-x-4x
0=-5-5x
5x=-5
x=-5/5
x=-1

y=2-x
y=2-(-1)
y=2+1
y=3

(-1,3) so C.

Answer 3

2-x=4x+7 set up this way and solve for x
jhonyy9 did you set it up this way to begin with?