[u]-22=-15

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Solution for [u]-22=-15 equation: 


Simplifying
[u] + -22 = -15
u + -22 = -15

Reorder the terms:
-22 + u = -15

Solving
-22 + u = -15

Solving for variable 'u'.

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

Add '22' to each side of the equation.
-22 + 22 + u = -15 + 22

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

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

Simplifying
u = 7

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