Solve for t
t=\frac{13}{21}\approx 0.619047619
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t=-\frac{5}{7}+\frac{4}{3}
Add \frac{4}{3} to both sides.
t=-\frac{15}{21}+\frac{28}{21}
Least common multiple of 7 and 3 is 21. Convert -\frac{5}{7} and \frac{4}{3} to fractions with denominator 21.
t=\frac{-15+28}{21}
Since -\frac{15}{21} and \frac{28}{21} have the same denominator, add them by adding their numerators.
t=\frac{13}{21}
Add -15 and 28 to get 13.
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