U-1=-4

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Solution for U-1=-4 equation: 


Simplifying
U + -1 = -4

Reorder the terms:
-1 + U = -4

Solving
-1 + U = -4

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 = -4 + 1

Combine like terms: -1 + 1 = 0
0 + U = -4 + 1
U = -4 + 1

Combine like terms: -4 + 1 = -3
U = -3

Simplifying
U = -3

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