Question

Solve the system of equations by substitution.
X+5y=-11
-7x-9y=-1

Answer 1

Step-by-step explanation:

rearange one of the equations:

x = -11 - 5y

substitute x in the second equation

-7 (-11-5y) - 9y = -1

solve for y

once you know the value of y, substitute again to solve for x