Solve for x
x=6.4
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2.5x=20-4
Subtract 4 from both sides.
2.5x=16
Subtract 4 from 20 to get 16.
x=\frac{16}{2.5}
Divide both sides by 2.5.
x=\frac{160}{25}
Expand \frac{16}{2.5} by multiplying both numerator and the denominator by 10.
x=\frac{32}{5}
Reduce the fraction \frac{160}{25} to lowest terms by extracting and canceling out 5.
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