1=u-3

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Solution for 1=u-3 equation:


Simplifying
1 = u + -3

Reorder the terms:
1 = -3 + u

Solving
1 = -3 + 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.
1 + -1u = -3 + u + -1u

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

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

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

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

Divide each side by '-1'.
u = 4

Simplifying
u = 4

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