Solve for x
x=3
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7-x-3x=-5
Subtract 3x from both sides.
7-4x=-5
Combine -x and -3x to get -4x.
-4x=-5-7
Subtract 7 from both sides.
-4x=-12
Subtract 7 from -5 to get -12.
x=\frac{-12}{-4}
Divide both sides by -4.
x=3
Divide -12 by -4 to get 3.
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