Solve for x
x=-3
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x-6-3x=0
Subtract 3x from both sides.
-2x-6=0
Combine x and -3x to get -2x.
-2x=6
Add 6 to both sides. Anything plus zero gives itself.
x=\frac{6}{-2}
Divide both sides by -2.
x=-3
Divide 6 by -2 to get -3.
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