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

Answer:

The answer is B.(5,10)

Step-by-step explanation:

1. y = 2(5)

  y = 10

2.y = -2(5)+20

  y = -10+20

  y = 10

Answer 2

The answer is b (5,10)