3u+15=45

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Solution for 3u+15=45 equation: 


Simplifying
3u + 15 = 45

Reorder the terms:
15 + 3u = 45

Solving
15 + 3u = 45

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 + 3u = 45 + -15

Combine like terms: 15 + -15 = 0
0 + 3u = 45 + -15
3u = 45 + -15

Combine like terms: 45 + -15 = 30
3u = 30

Divide each side by '3'.
u = 10

Simplifying
u = 10

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