Solve for x
x=-3
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90+10x-20=40
Use the distributive property to multiply 5 by 18+2x.
70+10x=40
Subtract 20 from 90 to get 70.
10x=40-70
Subtract 70 from both sides.
10x=-30
Subtract 70 from 40 to get -30.
x=\frac{-30}{10}
Divide both sides by 10.
x=-3
Divide -30 by 10 to get -3.
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