Question

Solve the system of equations using substitution.

{y=9x
6x−y=−1

Answer 1

x = 1/3

y = 3

Explanation:

6x - 9x = -1

-3x = -1

x = 1/3

y = 9

y = 9(1/3)

y = 3

CHECK:

6(1/3) - 3 = -1

2 - 3 = -1

-1 = -1