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-7/3-2/7u=-5/2
We simplify the equation to the form, which is simple to understand
-7/3-2/7u=-5/2
We move all terms containing u to the left and all other terms to the right.
+7u=-2.5
We simplify left and right side of the equation.
+7u=-2.5
We divide both sides of the equation by 7 to get u.
u=-0.35714285714286
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