3u+5=20

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Solution for 3u+5=20 equation: 


Simplifying
3u + 5 = 20

Reorder the terms:
5 + 3u = 20

Solving
5 + 3u = 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 + 3u = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 3u = 20 + -5
3u = 20 + -5

Combine like terms: 20 + -5 = 15
3u = 15

Divide each side by '3'.
u = 5

Simplifying
u = 5

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