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\frac{3\times 13}{15}-2x=3
Express 3\times \frac{13}{15} as a single fraction.
\frac{39}{15}-2x=3
Multiply 3 and 13 to get 39.
\frac{13}{5}-2x=3
Reduce the fraction \frac{39}{15} to lowest terms by extracting and canceling out 3.
-2x=3-\frac{13}{5}
Subtract \frac{13}{5} from both sides.
-2x=\frac{15}{5}-\frac{13}{5}
Convert 3 to fraction \frac{15}{5}.
-2x=\frac{15-13}{5}
Since \frac{15}{5} and \frac{13}{5} have the same denominator, subtract them by subtracting their numerators.
-2x=\frac{2}{5}
Subtract 13 from 15 to get 2.
x=\frac{\frac{2}{5}}{-2}
Divide both sides by -2.
x=\frac{2}{5\left(-2\right)}
Express \frac{\frac{2}{5}}{-2} as a single fraction.
x=\frac{2}{-10}
Multiply 5 and -2 to get -10.
x=-\frac{1}{5}
Reduce the fraction \frac{2}{-10} to lowest terms by extracting and canceling out 2.