3b+3(3b+2)=-42

Solution for 3b+3(3b+2)=-42 equation:

Simplifying
3b + 3(3b + 2) = -42

Reorder the terms:
3b + 3(2 + 3b) = -42
3b + (2 * 3 + 3b * 3) = -42
3b + (6 + 9b) = -42

Reorder the terms:
6 + 3b + 9b = -42

Combine like terms: 3b + 9b = 12b
6 + 12b = -42

Solving
6 + 12b = -42

Solving for variable 'b'.

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

Add '-6' to each side of the equation.
6 + -6 + 12b = -42 + -6

Combine like terms: 6 + -6 = 0
0 + 12b = -42 + -6
12b = -42 + -6

Combine like terms: -42 + -6 = -48
12b = -48

Divide each side by '12'.
b = -4

Simplifying
b = -4