3(a+3)+1=

Solution for 3(a+3)+1= equation:

Simplifying
3(a + 3) + 1 = 0

Reorder the terms:
3(3 + a) + 1 = 0
(3 * 3 + a * 3) + 1 = 0
(9 + 3a) + 1 = 0

Reorder the terms:
9 + 1 + 3a = 0

Combine like terms: 9 + 1 = 10
10 + 3a = 0

Solving
10 + 3a = 0

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + 3a = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 3a = 0 + -10
3a = 0 + -10

Combine like terms: 0 + -10 = -10
3a = -10

Divide each side by '3'.
a = -3.333333333

Simplifying
a = -3.333333333