8+u=-[3]

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Solution for 8+u=-[3] equation: 


Simplifying
8 + u = -1[3]

Multiply -1 * 3
8 + u = -3

Solving
8 + u = -3

Solving for variable 'u'.

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

Add '-8' to each side of the equation.
8 + -8 + u = -3 + -8

Combine like terms: 8 + -8 = 0
0 + u = -3 + -8
u = -3 + -8

Combine like terms: -3 + -8 = -11
u = -11

Simplifying
u = -11

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