-2(3-6b)-15b=

Solution for -2(3-6b)-15b= equation:

Simplifying
-2(3 + -6b) + -15b = 0
(3 * -2 + -6b * -2) + -15b = 0
(-6 + 12b) + -15b = 0

Combine like terms: 12b + -15b = -3b
-6 + -3b = 0

Solving
-6 + -3b = 0

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 + -3b = 0 + 6

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

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

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

Simplifying
b = -2