Solve for x
x=-2
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5x+20+5x=0
Add 5x to both sides.
10x+20=0
Combine 5x and 5x to get 10x.
10x=-20
Subtract 20 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-20}{10}
Divide both sides by 10.
x=-2
Divide -20 by 10 to get -2.
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