Answer:
x=-1
Step-by-step explanation:
4x-16=-20
Get x to one side by subtracting it.
-16=-20-4x
Add the 20 on both sides.
-16+20=-4x
Simplify
4=-4x
4/-4=-4x/-4
-1=x
x= -1
4x-16=-20 add positive 16 on each side
+16 +16
4x = -4 divide 4 on each side
4 4
x = -1
