U+90=7u-84

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Solution for U+90=7u-84 equation: 


Simplifying
U + 90 = 7u + -84

Reorder the terms:
90 + U = 7u + -84

Reorder the terms:
90 + U = -84 + 7u

Solving
90 + U = -84 + 7u

Solving for variable 'U'.

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

Add '-90' to each side of the equation.
90 + -90 + U = -84 + -90 + 7u

Combine like terms: 90 + -90 = 0
0 + U = -84 + -90 + 7u
U = -84 + -90 + 7u

Combine like terms: -84 + -90 = -174
U = -174 + 7u

Simplifying
U = -174 + 7u

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