u+10=-10-9u

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Solution for u+10=-10-9u equation:


Simplifying
u + 10 = -10 + -9u

Reorder the terms:
10 + u = -10 + -9u

Solving
10 + u = -10 + -9u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '9u' to each side of the equation.
10 + u + 9u = -10 + -9u + 9u

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

Combine like terms: -9u + 9u = 0
10 + 10u = -10 + 0
10 + 10u = -10

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

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

Combine like terms: -10 + -10 = -20
10u = -20

Divide each side by '10'.
u = -2

Simplifying
u = -2

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