19=10-u

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Solution for 19=10-u equation:


Simplifying
19 = 10 + -1u

Solving
19 = 10 + -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.
19 + u = 10 + -1u + u

Combine like terms: -1u + u = 0
19 + u = 10 + 0
19 + u = 10

Add '-19' to each side of the equation.
19 + -19 + u = 10 + -19

Combine like terms: 19 + -19 = 0
0 + u = 10 + -19
u = 10 + -19

Combine like terms: 10 + -19 = -9
u = -9

Simplifying
u = -9

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