12+b=3-2b

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Solution for 12+b=3-2b equation:


Simplifying
12 + b = 3 + -2b

Solving
12 + b = 3 + -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 + b + 2b = 3 + -2b + 2b

Combine like terms: b + 2b = 3b
12 + 3b = 3 + -2b + 2b

Combine like terms: -2b + 2b = 0
12 + 3b = 3 + 0
12 + 3b = 3

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

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

Combine like terms: 3 + -12 = -9
3b = -9

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

Simplifying
b = -3

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