Answer:
x = -84
y = -21
Step-by-step explanation:
4 - y = 17
4y = x
Use the first equation to solve for y
4 - y = 17
y = 4 - 17
y = -21
In the second equation, get y on its own.
4y = x
y = x/4
Substitute the new second equation into the new first equation
-21 = x/4
-21 * 4 = x
x = -84
