12-3b-2b=-3

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


Simplifying
12 + -3b + -2b = -3

Combine like terms: -3b + -2b = -5b
12 + -5b = -3

Solving
12 + -5b = -3

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + -12 + -5b = -3 + -12

Combine like terms: 12 + -12 = 0
0 + -5b = -3 + -12
-5b = -3 + -12

Combine like terms: -3 + -12 = -15
-5b = -15

Divide each side by '-5'.
b = 3

Simplifying
b = 3

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