Solve for x
x=20
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0x+32-x=12
Multiply 0 and 8 to get 0.
0+32-x=12
Anything times zero gives zero.
32-x=12
Add 0 and 32 to get 32.
-x=12-32
Subtract 32 from both sides.
-x=-20
Subtract 32 from 12 to get -20.
x=20
Multiply both sides by -1.
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