The problem gives us two expressions:
And we need to solve for x. For that, the first step is to replace "y" on the first expression by the right side of the second expression:
Now we need to isolate the "x" variable on the left side:
We can now find "y" by replacing the value of "x" on the second expression:
The value of x is equal to -2, and the value of y is equal to -36.