Solve for x
x=-1
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-10+12x+40=18
Use the distributive property to multiply 4 by 3x+10.
30+12x=18
Add -10 and 40 to get 30.
12x=18-30
Subtract 30 from both sides.
12x=-12
Subtract 30 from 18 to get -12.
x=\frac{-12}{12}
Divide both sides by 12.
x=-1
Divide -12 by 12 to get -1.
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