Solve for x
x=3
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-20x+100+30=70
Combine 10x and -30x to get -20x.
-20x+130=70
Add 100 and 30 to get 130.
-20x=70-130
Subtract 130 from both sides.
-20x=-60
Subtract 130 from 70 to get -60.
x=\frac{-60}{-20}
Divide both sides by -20.
x=3
Divide -60 by -20 to get 3.
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