15+u-22=

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Solution for 15+u-22= equation: 


Simplifying
15 + u + -22 = 0

Reorder the terms:
15 + -22 + u = 0

Combine like terms: 15 + -22 = -7
-7 + u = 0

Solving
-7 + u = 0

Solving for variable 'u'.

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

Add '7' to each side of the equation.
-7 + 7 + u = 0 + 7

Combine like terms: -7 + 7 = 0
0 + u = 0 + 7
u = 0 + 7

Combine like terms: 0 + 7 = 7
u = 7

Simplifying
u = 7

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