10 \% (x+20)=3
Solve for x
x=10
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\frac{1}{10}\left(x+20\right)=3
Reduce the fraction \frac{10}{100} to lowest terms by extracting and canceling out 10.
\frac{1}{10}x+\frac{1}{10}\times 20=3
Use the distributive property to multiply \frac{1}{10} by x+20.
\frac{1}{10}x+\frac{20}{10}=3
Multiply \frac{1}{10} and 20 to get \frac{20}{10}.
\frac{1}{10}x+2=3
Divide 20 by 10 to get 2.
\frac{1}{10}x=3-2
Subtract 2 from both sides.
\frac{1}{10}x=1
Subtract 2 from 3 to get 1.
x=1\times 10
Multiply both sides by 10, the reciprocal of \frac{1}{10}.
x=10
Multiply 1 and 10 to get 10.
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