Solve for x
x=3.9
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8x-3.2=28
Combine 7x and x to get 8x.
8x=28+3.2
Add 3.2 to both sides.
8x=31.2
Add 28 and 3.2 to get 31.2.
x=\frac{31.2}{8}
Divide both sides by 8.
x=\frac{312}{80}
Expand \frac{31.2}{8} by multiplying both numerator and the denominator by 10.
x=\frac{39}{10}
Reduce the fraction \frac{312}{80} to lowest terms by extracting and canceling out 8.
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