Isolate the on the left side of the equation by performing the same steps on both sides. These steps should be the opposite of the operations performed on , as follows:

Multiplication precedes addition in the order of operations, so reverse the addition of 12 by subtracting 12 from both sides:

Now reverse multiplication by 2 by dividing by 2:

, the correct value of .

Isolate the on the left side of the equation by performing the same steps on both sides. These steps should be the opposite of the operations performed on .

Multiplication precedes subtraction in the order of operations, so reverse the subtraction of 44 by adding 44 to both sides:

Now reverse multiplication by 2 by dividing by 2:

.