Solve for x
x=35
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12-x=8-31
Add 5 and 7 to get 12.
12-x=-23
Subtract 31 from 8 to get -23.
-x=-23-12
Subtract 12 from both sides.
-x=-35
Subtract 12 from -23 to get -35.
x=35
Multiply both sides by -1.
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