5u-15=85

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Solution for 5u-15=85 equation: 


Simplifying
5u + -15 = 85

Reorder the terms:
-15 + 5u = 85

Solving
-15 + 5u = 85

Solving for variable 'u'.

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

Add '15' to each side of the equation.
-15 + 15 + 5u = 85 + 15

Combine like terms: -15 + 15 = 0
0 + 5u = 85 + 15
5u = 85 + 15

Combine like terms: 85 + 15 = 100
5u = 100

Divide each side by '5'.
u = 20

Simplifying
u = 20

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