-12(3+b)=31

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Solution for -12(3+b)=31 equation: 


Simplifying
-12(3 + b) = 31
(3 * -12 + b * -12) = 31
(-36 + -12b) = 31

Solving
-36 + -12b = 31

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 + -12b = 31 + 36

Combine like terms: -36 + 36 = 0
0 + -12b = 31 + 36
-12b = 31 + 36

Combine like terms: 31 + 36 = 67
-12b = 67

Divide each side by '-12'.
b = -5.583333333

Simplifying
b = -5.583333333

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