Solve for x
x=2.5
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3x-7.5=0
Subtract 11 from 3.5 to get -7.5.
3x=7.5
Add 7.5 to both sides. Anything plus zero gives itself.
x=\frac{7.5}{3}
Divide both sides by 3.
x=\frac{75}{30}
Expand \frac{7.5}{3} by multiplying both numerator and the denominator by 10.
x=\frac{5}{2}
Reduce the fraction \frac{75}{30} to lowest terms by extracting and canceling out 15.
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