-4=8+2u

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Solution for -4=8+2u equation:


Simplifying
-4 = 8 + 2u

Solving
-4 = 8 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
-4 + -2u = 8 + 2u + -2u

Combine like terms: 2u + -2u = 0
-4 + -2u = 8 + 0
-4 + -2u = 8

Add '4' to each side of the equation.
-4 + 4 + -2u = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -2u = 8 + 4
-2u = 8 + 4

Combine like terms: 8 + 4 = 12
-2u = 12

Divide each side by '-2'.
u = -6

Simplifying
u = -6

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