u-7=-4

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Solution for u-7=-4 equation: 


Simplifying
u + -7 = -4

Reorder the terms:
-7 + u = -4

Solving
-7 + u = -4

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 = -4 + 7

Combine like terms: -7 + 7 = 0
0 + u = -4 + 7
u = -4 + 7

Combine like terms: -4 + 7 = 3
u = 3

Simplifying
u = 3

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