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-9/5u=-8/7
We simplify the equation to the form, which is simple to understand
-9/5u=-8/7
We move all terms containing u to the left and all other terms to the right.
+5u=-1.1428571428571
We simplify left and right side of the equation.
+5u=-1.1428571428571
We divide both sides of the equation by 5 to get u.
u=-0.22857142857143
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