3u+3(u+3)=3

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

Simplifying
3u + 3(u + 3) = 3

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

Reorder the terms:
9 + 3u + 3u = 3

Combine like terms: 3u + 3u = 6u
9 + 6u = 3

Solving
9 + 6u = 3

Solving for variable 'u'.

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

Add '-9' to each side of the equation.
9 + -9 + 6u = 3 + -9

Combine like terms: 9 + -9 = 0
0 + 6u = 3 + -9
6u = 3 + -9

Combine like terms: 3 + -9 = -6
6u = -6

Divide each side by '6'.
u = -1

Simplifying
u = -1