u-10=-u

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Solution for u-10=-u equation:


Simplifying
u + -10 = -1u

Reorder the terms:
-10 + u = -1u

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

Combine like terms: u + u = 2u
-10 + 2u = -1u + u

Combine like terms: -1u + u = 0
-10 + 2u = 0

Add '10' to each side of the equation.
-10 + 10 + 2u = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 2u = 0 + 10
2u = 0 + 10

Combine like terms: 0 + 10 = 10
2u = 10

Divide each side by '2'.
u = 5

Simplifying
u = 5

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