-u+156=21

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Solution for -u+156=21 equation:


Simplifying
-1u + 156 = 21

Reorder the terms:
156 + -1u = 21

Solving
156 + -1u = 21

Solving for variable 'u'.

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

Add '-156' to each side of the equation.
156 + -156 + -1u = 21 + -156

Combine like terms: 156 + -156 = 0
0 + -1u = 21 + -156
-1u = 21 + -156

Combine like terms: 21 + -156 = -135
-1u = -135

Divide each side by '-1'.
u = 135

Simplifying
u = 135

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