Question

Solve the system by substitution. And show your work

-9y-10=x

5x+6y=-11

Answer 1

x = -1, y = -1

( -1 , -1 )

Explanation:

plug in -9y - 10 for x

5 ( -9y - 10) + 6y = -11

-45y - 50 + 6y = -11

-39y - 50 = -11

-39y = 39

y = -1

then plug in

-9(-1) - 10 = x

9 - 10 = x

x = -1