3(3u+5)=78

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Solution for 3(3u+5)=78 equation: 


Simplifying
3(3u + 5) = 78

Reorder the terms:
3(5 + 3u) = 78
(5 * 3 + 3u * 3) = 78
(15 + 9u) = 78

Solving
15 + 9u = 78

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 + 9u = 78 + -15

Combine like terms: 15 + -15 = 0
0 + 9u = 78 + -15
9u = 78 + -15

Combine like terms: 78 + -15 = 63
9u = 63

Divide each side by '9'.
u = 7

Simplifying
u = 7

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