-4-2u=-20

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Solution for -4-2u=-20 equation: 


Simplifying
-4 + -2u = -20

Solving
-4 + -2u = -20

Solving for variable 'u'.

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

Add '4' to each side of the equation.
-4 + 4 + -2u = -20 + 4

Combine like terms: -4 + 4 = 0
0 + -2u = -20 + 4
-2u = -20 + 4

Combine like terms: -20 + 4 = -16
-2u = -16

Divide each side by '-2'.
u = 8

Simplifying
u = 8

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