Solve for x
x=12
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20=32-x
Add 13 and 7 to get 20.
32-x=20
Swap sides so that all variable terms are on the left hand side.
-x=20-32
Subtract 32 from both sides.
-x=-12
Subtract 32 from 20 to get -12.
x=12
Multiply both sides by -1.
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