209=73-u

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Solution for 209=73-u equation:


Simplifying
209 = 73 + -1u

Solving
209 = 73 + -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.
209 + u = 73 + -1u + u

Combine like terms: -1u + u = 0
209 + u = 73 + 0
209 + u = 73

Add '-209' to each side of the equation.
209 + -209 + u = 73 + -209

Combine like terms: 209 + -209 = 0
0 + u = 73 + -209
u = 73 + -209

Combine like terms: 73 + -209 = -136
u = -136

Simplifying
u = -136

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