Solve for d
d=\frac{7}{10}=0.7
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8d-\frac{3}{5}-5d=\frac{3}{2}
Subtract 5d from both sides.
3d-\frac{3}{5}=\frac{3}{2}
Combine 8d and -5d to get 3d.
3d=\frac{3}{2}+\frac{3}{5}
Add \frac{3}{5} to both sides.
3d=\frac{15}{10}+\frac{6}{10}
Least common multiple of 2 and 5 is 10. Convert \frac{3}{2} and \frac{3}{5} to fractions with denominator 10.
3d=\frac{15+6}{10}
Since \frac{15}{10} and \frac{6}{10} have the same denominator, add them by adding their numerators.
3d=\frac{21}{10}
Add 15 and 6 to get 21.
d=\frac{\frac{21}{10}}{3}
Divide both sides by 3.
d=\frac{21}{10\times 3}
Express \frac{\frac{21}{10}}{3} as a single fraction.
d=\frac{21}{30}
Multiply 10 and 3 to get 30.
d=\frac{7}{10}
Reduce the fraction \frac{21}{30} to lowest terms by extracting and canceling out 3.
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