u-6=-7

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Solution for u-6=-7 equation: 


Simplifying
u + -6 = -7

Reorder the terms:
-6 + u = -7

Solving
-6 + u = -7

Solving for variable 'u'.

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

Add '6' to each side of the equation.
-6 + 6 + u = -7 + 6

Combine like terms: -6 + 6 = 0
0 + u = -7 + 6
u = -7 + 6

Combine like terms: -7 + 6 = -1
u = -1

Simplifying
u = -1

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