-(u-84)+-55=9

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Solution for -(u-84)+-55=9 equation:


Simplifying
-1(u + -84) + -55 = 9

Reorder the terms:
-1(-84 + u) + -55 = 9
(-84 * -1 + u * -1) + -55 = 9
(84 + -1u) + -55 = 9

Reorder the terms:
84 + -55 + -1u = 9

Combine like terms: 84 + -55 = 29
29 + -1u = 9

Solving
29 + -1u = 9

Solving for variable 'u'.

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

Add '-29' to each side of the equation.
29 + -29 + -1u = 9 + -29

Combine like terms: 29 + -29 = 0
0 + -1u = 9 + -29
-1u = 9 + -29

Combine like terms: 9 + -29 = -20
-1u = -20

Divide each side by '-1'.
u = 20

Simplifying
u = 20

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