U+81=9u-7

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Solution for U+81=9u-7 equation: 


Simplifying
U + 81 = 9u + -7

Reorder the terms:
81 + U = 9u + -7

Reorder the terms:
81 + U = -7 + 9u

Solving
81 + U = -7 + 9u

Solving for variable 'U'.

Move all terms containing U to the left, all other terms to the right.

Add '-81' to each side of the equation.
81 + -81 + U = -7 + -81 + 9u

Combine like terms: 81 + -81 = 0
0 + U = -7 + -81 + 9u
U = -7 + -81 + 9u

Combine like terms: -7 + -81 = -88
U = -88 + 9u

Simplifying
U = -88 + 9u

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