Question

Solve the system of equations using the substitution method.

y = 7x - 16,
y = 2(2x - 5)
What is the solution?

Answer 1

(2, -2)

Explanation:

Got it right on Edge

Answer 2

solution: (2, -2)

Explanation:

y = 7x - 16,

y = 2(2x - 5)

solving...

7x - 16 = 2*(2x - 5)

7x - 16 = 4x - 10

7x - 4x = 16 - 10

3x = 6

x = 2

y = 7*2 - 16 = 14 - 16 = -2