5-5u=20

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Solution for 5-5u=20 equation: 


Simplifying
5 + -5u = 20

Solving
5 + -5u = 20

Solving for variable 'u'.

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

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

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

Combine like terms: 20 + -5 = 15
-5u = 15

Divide each side by '-5'.
u = -3

Simplifying
u = -3

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