3[2+q]+15=

Solution for 3[2+q]+15= equation:

Simplifying
3[2 + q] + 15 = 0
[2 * 3 + q * 3] + 15 = 0
[6 + 3q] + 15 = 0

Reorder the terms:
6 + 15 + 3q = 0

Combine like terms: 6 + 15 = 21
21 + 3q = 0

Solving
21 + 3q = 0

Solving for variable 'q'.

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

Add '-21' to each side of the equation.
21 + -21 + 3q = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 3q = 0 + -21
3q = 0 + -21

Combine like terms: 0 + -21 = -21
3q = -21

Divide each side by '3'.
q = -7

Simplifying
q = -7