Solve for x
x=0.38
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19\times 0.8=40x
Multiply both sides of the equation by 19000, the least common multiple of 1000,475.
15.2=40x
Multiply 19 and 0.8 to get 15.2.
40x=15.2
Swap sides so that all variable terms are on the left hand side.
x=\frac{15.2}{40}
Divide both sides by 40.
x=\frac{152}{400}
Expand \frac{15.2}{40} by multiplying both numerator and the denominator by 10.
x=\frac{19}{50}
Reduce the fraction \frac{152}{400} to lowest terms by extracting and canceling out 8.
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