Solve for x
x=-18
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20-\left(-x+2\right)=0
Multiply both sides of the equation by 5.
20-\left(-x\right)-2=0
To find the opposite of -x+2, find the opposite of each term.
18-\left(-x\right)=0
Subtract 2 from 20 to get 18.
-\left(-x\right)=-18
Subtract 18 from both sides. Anything subtracted from zero gives its negation.
-x=\frac{-18}{-1}
Divide both sides by -1.
-x=18
Fraction \frac{-18}{-1} can be simplified to 18 by removing the negative sign from both the numerator and the denominator.
x=-18
Multiply both sides by -1.
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Limits
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