Solve for z
z=\frac{4}{7}\approx 0.571428571
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z=\frac{11}{14}-\frac{3}{14}
Subtract \frac{3}{14} from both sides.
z=\frac{11-3}{14}
Since \frac{11}{14} and \frac{3}{14} have the same denominator, subtract them by subtracting their numerators.
z=\frac{8}{14}
Subtract 3 from 11 to get 8.
z=\frac{4}{7}
Reduce the fraction \frac{8}{14} to lowest terms by extracting and canceling out 2.
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