-4=u-5

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Solution for -4=u-5 equation: 


Simplifying
-4 = u + -5

Reorder the terms:
-4 = -5 + u

Solving
-4 = -5 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-4 + -1u = -5 + u + -1u

Combine like terms: u + -1u = 0
-4 + -1u = -5 + 0
-4 + -1u = -5

Add '4' to each side of the equation.
-4 + 4 + -1u = -5 + 4

Combine like terms: -4 + 4 = 0
0 + -1u = -5 + 4
-1u = -5 + 4

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

Divide each side by '-1'.
u = 1

Simplifying
u = 1

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