-9b-4b=39

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Solution for -9b-4b=39 equation: 


Simplifying
-9b + -4b = 39

Combine like terms: -9b + -4b = -13b
-13b = 39

Solving
-13b = 39

Solving for variable 'b'.

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

Divide each side by '-13'.
b = -3

Simplifying
b = -3

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