50 \times 20 \% =(50+x) \times 5 \%
Solve for x
x=150
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50\times \frac{1}{5}=\left(50+x\right)\times \frac{5}{100}
Reduce the fraction \frac{20}{100} to lowest terms by extracting and canceling out 20.
\frac{50}{5}=\left(50+x\right)\times \frac{5}{100}
Multiply 50 and \frac{1}{5} to get \frac{50}{5}.
10=\left(50+x\right)\times \frac{5}{100}
Divide 50 by 5 to get 10.
10=\left(50+x\right)\times \frac{1}{20}
Reduce the fraction \frac{5}{100} to lowest terms by extracting and canceling out 5.
10=50\times \frac{1}{20}+x\times \frac{1}{20}
Use the distributive property to multiply 50+x by \frac{1}{20}.
10=\frac{50}{20}+x\times \frac{1}{20}
Multiply 50 and \frac{1}{20} to get \frac{50}{20}.
10=\frac{5}{2}+x\times \frac{1}{20}
Reduce the fraction \frac{50}{20} to lowest terms by extracting and canceling out 10.
\frac{5}{2}+x\times \frac{1}{20}=10
Swap sides so that all variable terms are on the left hand side.
x\times \frac{1}{20}=10-\frac{5}{2}
Subtract \frac{5}{2} from both sides.
x\times \frac{1}{20}=\frac{20}{2}-\frac{5}{2}
Convert 10 to fraction \frac{20}{2}.
x\times \frac{1}{20}=\frac{20-5}{2}
Since \frac{20}{2} and \frac{5}{2} have the same denominator, subtract them by subtracting their numerators.
x\times \frac{1}{20}=\frac{15}{2}
Subtract 5 from 20 to get 15.
x=\frac{15}{2}\times 20
Multiply both sides by 20, the reciprocal of \frac{1}{20}.
x=\frac{15\times 20}{2}
Express \frac{15}{2}\times 20 as a single fraction.
x=\frac{300}{2}
Multiply 15 and 20 to get 300.
x=150
Divide 300 by 2 to get 150.
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