Question

Use the substitution method to solve the system of equations. Choose the correct ordered pair. y = 5x + 7 x = 8 A. (8, 47) B. (0, 7) C. (8, 15) D. (0, 8)

Answer 1

Assuming the system is composed of the equations y = 5x+7 and x = 8, then the answer is (8,47) which is choice A

To get this answer, we simply replace x in the first equation with 8, and then compute

y = 5x+7

y = 5*8+7 .... replace x with 8

y = 40+7

y = 47

So together x = 8 and y = 47 pair up to get us the solution (x,y) = (8,47)