Question

use the substitution method to solve the system of equations . choose the correct ordered pairs x+y=5 y=7 A.(12,7) B.(-12,7) C. (-2,7) D.(2,7)

Answer 1

Answer: (-2,7)

Explanation:

Answer 2

C. (-2, 7)

Explanation:

Put y = 7 to the equation x + y = 5:

x + 7 = 5 subtract 7 from both sides

x = -2