Solve for x
x=750
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\frac{4}{5}\left(x+300\right)=x+90
Reduce the fraction \frac{80}{100} to lowest terms by extracting and canceling out 20.
\frac{4}{5}x+\frac{4}{5}\times 300=x+90
Use the distributive property to multiply \frac{4}{5} by x+300.
\frac{4}{5}x+\frac{4\times 300}{5}=x+90
Express \frac{4}{5}\times 300 as a single fraction.
\frac{4}{5}x+\frac{1200}{5}=x+90
Multiply 4 and 300 to get 1200.
\frac{4}{5}x+240=x+90
Divide 1200 by 5 to get 240.
\frac{4}{5}x+240-x=90
Subtract x from both sides.
-\frac{1}{5}x+240=90
Combine \frac{4}{5}x and -x to get -\frac{1}{5}x.
-\frac{1}{5}x=90-240
Subtract 240 from both sides.
-\frac{1}{5}x=-150
Subtract 240 from 90 to get -150.
x=-150\left(-5\right)
Multiply both sides by -5, the reciprocal of -\frac{1}{5}.
x=750
Multiply -150 and -5 to get 750.
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Limits
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