Answer:
x = -3
r = -7
Step-by-step explanation:
Distribute.
183 = -56x + 16 - 1
Combine like terms.
183 = -56x + 15
Isolate the variable.
-56x = 168
Divide by the coefficient.
x = -3
Distribute.
48 + 48r = -288
Isolate the variable.
48r = -336
Divide by the coefficient.
r = -7
