u-4+5=7

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Solution for u-4+5=7 equation: 


Simplifying
u + -4 + 5 = 7

Reorder the terms:
-4 + 5 + u = 7

Combine like terms: -4 + 5 = 1
1 + u = 7

Solving
1 + u = 7

Solving for variable 'u'.

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

Add '-1' to each side of the equation.
1 + -1 + u = 7 + -1

Combine like terms: 1 + -1 = 0
0 + u = 7 + -1
u = 7 + -1

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

Simplifying
u = 6

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