20=-5-5u

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Solution for 20=-5-5u equation:


Simplifying
20 = -5 + -5u

Solving
20 = -5 + -5u

Solving for variable 'u'.

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

Add '5u' to each side of the equation.
20 + 5u = -5 + -5u + 5u

Combine like terms: -5u + 5u = 0
20 + 5u = -5 + 0
20 + 5u = -5

Add '-20' to each side of the equation.
20 + -20 + 5u = -5 + -20

Combine like terms: 20 + -20 = 0
0 + 5u = -5 + -20
5u = -5 + -20

Combine like terms: -5 + -20 = -25
5u = -25

Divide each side by '5'.
u = -5

Simplifying
u = -5

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