Question

use the substitution method to solve the sstem of equations choose the correct ordered pair 2x-y=10 and 2x-2y=4

Answer 1

(8, 6)

Explanation:

2x - y = 10

2x - 2y = 4

=>

x - y = 2

x = y + 2

we put that into the first equation

2×(y+2) - y = 10

2y + 4 - y = 10

y + 4 = 10

y = 6

=>

x = y + 2 = 6 + 2 = 8

so, we have a ordered pair (x, y) = (8, 6)