Solve for x
x=\frac{3}{7}\approx 0.428571429
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x=\frac{5}{7}-\frac{2}{7}
Subtract \frac{2}{7} from both sides.
x=\frac{5-2}{7}
Since \frac{5}{7} and \frac{2}{7} have the same denominator, subtract them by subtracting their numerators.
x=\frac{3}{7}
Subtract 2 from 5 to get 3.
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