Solve for x
x=4
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2x-12=-x
Subtract 4 from -8 to get -12.
2x-12+x=0
Add x to both sides.
3x-12=0
Combine 2x and x to get 3x.
3x=12
Add 12 to both sides. Anything plus zero gives itself.
x=\frac{12}{3}
Divide both sides by 3.
x=4
Divide 12 by 3 to get 4.
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Limits
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