-3(7b+2)=12-3b

Solution for -3(7b+2)=12-3b equation:

Simplifying
-3(7b + 2) = 12 + -3b

Reorder the terms:
-3(2 + 7b) = 12 + -3b
(2 * -3 + 7b * -3) = 12 + -3b
(-6 + -21b) = 12 + -3b

Solving
-6 + -21b = 12 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
-6 + -21b + 3b = 12 + -3b + 3b

Combine like terms: -21b + 3b = -18b
-6 + -18b = 12 + -3b + 3b

Combine like terms: -3b + 3b = 0
-6 + -18b = 12 + 0
-6 + -18b = 12

Add '6' to each side of the equation.
-6 + 6 + -18b = 12 + 6

Combine like terms: -6 + 6 = 0
0 + -18b = 12 + 6
-18b = 12 + 6

Combine like terms: 12 + 6 = 18
-18b = 18

Divide each side by '-18'.
b = -1

Simplifying
b = -1