Question

Solve the system.

x = y + 11
2x + y = -2

A. (-13,2)
B. (0,-11)
C. (3,-8)
D. No solution

Answer 1

x = y + 11

2x + y = -2
2(y + 11) + y = -2
2y + 22 + y = -2
3y + 22 = -2
3y = -24
y = -8

x = y + 11
x = -8 + 11
x = 3

Solution set {3, -8} (C)