[b-12]=15

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Solution for [b-12]=15 equation: 


Simplifying
[b + -12] = 15

Reorder the terms:
[-12 + b] = 15

Remove brackets around [-12 + b]
-12 + b = 15

Solving
-12 + b = 15

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 + b = 15 + 12

Combine like terms: -12 + 12 = 0
0 + b = 15 + 12
b = 15 + 12

Combine like terms: 15 + 12 = 27
b = 27

Simplifying
b = 27

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