Solve for x
x=-7
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-5x-20-7x=64
Subtract 7x from both sides.
-12x-20=64
Combine -5x and -7x to get -12x.
-12x=64+20
Add 20 to both sides.
-12x=84
Add 64 and 20 to get 84.
x=\frac{84}{-12}
Divide both sides by -12.
x=-7
Divide 84 by -12 to get -7.
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