5u-15=20

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Solution for 5u-15=20 equation: 


Simplifying
5u + -15 = 20

Reorder the terms:
-15 + 5u = 20

Solving
-15 + 5u = 20

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 = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 5u = 20 + 15
5u = 20 + 15

Combine like terms: 20 + 15 = 35
5u = 35

Divide each side by '5'.
u = 7

Simplifying
u = 7

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