2(b+3)-(9+6)=-5

Solution for 2(b+3)-(9+6)=-5 equation:

Simplifying
2(b + 3) + -1(9 + 6) = -5

Reorder the terms:
2(3 + b) + -1(9 + 6) = -5
(3 * 2 + b * 2) + -1(9 + 6) = -5
(6 + 2b) + -1(9 + 6) = -5

Combine like terms: 9 + 6 = 15
6 + 2b + -1(15) = -5

Multiply -1 * 15
6 + 2b + -15 = -5

Reorder the terms:
6 + -15 + 2b = -5

Combine like terms: 6 + -15 = -9
-9 + 2b = -5

Solving
-9 + 2b = -5

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 2b = -5 + 9

Combine like terms: -9 + 9 = 0
0 + 2b = -5 + 9
2b = -5 + 9

Combine like terms: -5 + 9 = 4
2b = 4

Divide each side by '2'.
b = 2

Simplifying
b = 2