Solve for x
x=6.5
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5x-4.2=28.3
Swap sides so that all variable terms are on the left hand side.
5x=28.3+4.2
Add 4.2 to both sides.
5x=32.5
Add 28.3 and 4.2 to get 32.5.
x=\frac{32.5}{5}
Divide both sides by 5.
x=\frac{325}{50}
Expand \frac{32.5}{5} by multiplying both numerator and the denominator by 10.
x=\frac{13}{2}
Reduce the fraction \frac{325}{50} to lowest terms by extracting and canceling out 25.
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