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

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


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

Reorder the terms:
12 + 6 + 3b + 2b = 0

Combine like terms: 12 + 6 = 18
18 + 3b + 2b = 0

Combine like terms: 3b + 2b = 5b
18 + 5b = 0

Solving
18 + 5b = 0

Solving for variable 'b'.

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

Add '-18' to each side of the equation.
18 + -18 + 5b = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 5b = 0 + -18
5b = 0 + -18

Combine like terms: 0 + -18 = -18
5b = -18

Divide each side by '5'.
b = -3.6

Simplifying
b = -3.6

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