Answer:
x = 14
Step-by-step explanation:
5(22 - x) = 40
Distribute the 5 into the parenthesis.
110 - 5x = 40
Subtract 110 from both sides.
-5x = -70
Divide both sides by -5.
x = 14.
Proof:
5(22 - x) = 40
Substitute variable.
5(22 - 14) = 40
Subtract inside parenthesis.
5(8) = 40
Multiply 5 and 8.
40 = 40.
