-u=8+u

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Solution for -u=8+u equation:


Simplifying
-1u = 8 + u

Solving
-1u = 8 + 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.
-1u + -1u = 8 + u + -1u

Combine like terms: -1u + -1u = -2u
-2u = 8 + u + -1u

Combine like terms: u + -1u = 0
-2u = 8 + 0
-2u = 8

Divide each side by '-2'.
u = -4

Simplifying
u = -4

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