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u-1=13.8
We simplify the equation to the form, which is simple to understand
u-1=13.8
We move all terms containing u to the left and all other terms to the right.
+1u=+13.8+1
We simplify left and right side of the equation.
+1u=+14.8
We divide both sides of the equation by 1 to get u.
u=14.8
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