3(12+b)=84

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Solution for 3(12+b)=84 equation: 


Simplifying
3(12 + b) = 84
(12 * 3 + b * 3) = 84
(36 + 3b) = 84

Solving
36 + 3b = 84

Solving for variable 'b'.

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

Add '-36' to each side of the equation.
36 + -36 + 3b = 84 + -36

Combine like terms: 36 + -36 = 0
0 + 3b = 84 + -36
3b = 84 + -36

Combine like terms: 84 + -36 = 48
3b = 48

Divide each side by '3'.
b = 16

Simplifying
b = 16

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