12b+12b-15b-3b=42

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Solution for 12b+12b-15b-3b=42 equation: 


Simplifying
12b + 12b + -15b + -3b = 42

Combine like terms: 12b + 12b = 24b
24b + -15b + -3b = 42

Combine like terms: 24b + -15b = 9b
9b + -3b = 42

Combine like terms: 9b + -3b = 6b
6b = 42

Solving
6b = 42

Solving for variable 'b'.

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

Divide each side by '6'.
b = 7

Simplifying
b = 7

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