Question

Solve the system of equations

Answer 1

(2, 3)

Explanation:

9x - 7y = -3

+ -9x + 15y = 27

8y = 24 (Divide by 8 on both sides)

8 = 8

y = 3

Substitute y = 3 in any of the two equations.

9x - 7(3) = -3

9x - 21 = -3

+21 = +21 (Add 21 on both sides)

9x = 18 (Divide by 9 on both sides)

9 = 9

x = 2