199=99-u

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Solution for 199=99-u equation:


Simplifying
199 = 99 + -1u

Solving
199 = 99 + -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.
199 + u = 99 + -1u + u

Combine like terms: -1u + u = 0
199 + u = 99 + 0
199 + u = 99

Add '-199' to each side of the equation.
199 + -199 + u = 99 + -199

Combine like terms: 199 + -199 = 0
0 + u = 99 + -199
u = 99 + -199

Combine like terms: 99 + -199 = -100
u = -100

Simplifying
u = -100

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