Solve for t, u
u=-1
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t=\frac{103}{72}
Consider the first equation. Add \frac{5}{9} and \frac{7}{8} to get \frac{103}{72}.
u=-1
Consider the second equation. Subtract 6 from 5 to get -1.
t=\frac{103}{72} u=-1
The system is now solved.
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