Solve for u
u=-115.2
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-36.6=78.6+u
Multiply both sides of the equation by 6.
78.6+u=-36.6
Swap sides so that all variable terms are on the left hand side.
u=-36.6-78.6
Subtract 78.6 from both sides.
u=-115.2
Subtract 78.6 from -36.6 to get -115.2.
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