Question

Solve the following system of equations by substitution.

y=2x
y=−2x+20

A. (10,-5)
B. (5,10)
C. (10,5)
D. (-10,5)

Answer 1

The answer is b (5,10)

Answer 2

The answer is B.(5,10)

Explanation:

1. y = 2(5)

y = 10

2.y = -2(5)+20

y = -10+20

y = 10