U-3=1

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Solution for U-3=1 equation: 


Simplifying
U + -3 = 1

Reorder the terms:
-3 + U = 1

Solving
-3 + U = 1

Solving for variable 'U'.

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

Add '3' to each side of the equation.
-3 + 3 + U = 1 + 3

Combine like terms: -3 + 3 = 0
0 + U = 1 + 3
U = 1 + 3

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

Simplifying
U = 4

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