Solve for x
x=6.2
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3x+3.1=21.7
Combine 2x and x to get 3x.
3x=21.7-3.1
Subtract 3.1 from both sides.
3x=18.6
Subtract 3.1 from 21.7 to get 18.6.
x=\frac{18.6}{3}
Divide both sides by 3.
x=\frac{186}{30}
Expand \frac{18.6}{3} by multiplying both numerator and the denominator by 10.
x=\frac{31}{5}
Reduce the fraction \frac{186}{30} to lowest terms by extracting and canceling out 6.
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