2u-(-8)=20

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Solution for 2u-(-8)=20 equation: 


Simplifying
2u + -1(-8) = 20

Multiply -1 * -8
2u + 8 = 20

Reorder the terms:
8 + 2u = 20

Solving
8 + 2u = 20

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 + 2u = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 2u = 20 + -8
2u = 20 + -8

Combine like terms: 20 + -8 = 12
2u = 12

Divide each side by '2'.
u = 6

Simplifying
u = 6

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