203=131-u

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Solution for 203=131-u equation:


Simplifying
203 = 131 + -1u

Solving
203 = 131 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
203 + u = 131 + -1u + u

Combine like terms: -1u + u = 0
203 + u = 131 + 0
203 + u = 131

Add '-203' to each side of the equation.
203 + -203 + u = 131 + -203

Combine like terms: 203 + -203 = 0
0 + u = 131 + -203
u = 131 + -203

Combine like terms: 131 + -203 = -72
u = -72

Simplifying
u = -72

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