8=-4+u

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Solution for 8=-4+u equation: 


Simplifying
8 = -4 + u

Solving
8 = -4 + 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.
8 + -1u = -4 + u + -1u

Combine like terms: u + -1u = 0
8 + -1u = -4 + 0
8 + -1u = -4

Add '-8' to each side of the equation.
8 + -8 + -1u = -4 + -8

Combine like terms: 8 + -8 = 0
0 + -1u = -4 + -8
-1u = -4 + -8

Combine like terms: -4 + -8 = -12
-1u = -12

Divide each side by '-1'.
u = 12

Simplifying
u = 12

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