(-3)+3(3+s)=

Solution for (-3)+3(3+s)= equation:

Simplifying
(-3) + 3(3 + s) = 0
-3 + 3(3 + s) = 0
-3 + (3 * 3 + s * 3) = 0
-3 + (9 + 3s) = 0

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

Solving
6 + 3s = 0

Solving for variable 's'.

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

Add '-6' to each side of the equation.
6 + -6 + 3s = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 3s = 0 + -6
3s = 0 + -6

Combine like terms: 0 + -6 = -6
3s = -6

Divide each side by '3'.
s = -2

Simplifying
s = -2