Solve for x
x=-4
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9-3x-x=25
Subtract x from both sides.
9-4x=25
Combine -3x and -x to get -4x.
-4x=25-9
Subtract 9 from both sides.
-4x=16
Subtract 9 from 25 to get 16.
x=\frac{16}{-4}
Divide both sides by -4.
x=-4
Divide 16 by -4 to get -4.
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