2u+(-4)=-20

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Solution for 2u+(-4)=-20 equation: 


Simplifying
2u + (-4) = -20
2u + -4 = -20

Reorder the terms:
-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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