12=2(b+3)

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

Simplifying
12 = 2(b + 3)

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

Solving
12 = 6 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
12 + -2b = 6 + 2b + -2b

Combine like terms: 2b + -2b = 0
12 + -2b = 6 + 0
12 + -2b = 6

Add '-12' to each side of the equation.
12 + -12 + -2b = 6 + -12

Combine like terms: 12 + -12 = 0
0 + -2b = 6 + -12
-2b = 6 + -12

Combine like terms: 6 + -12 = -6
-2b = -6

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

Simplifying
b = 3