-3b-5=7

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Solution for -3b-5=7 equation: 



-3b-5=7

We move all terms to the left:

-3b-5-(7)=0

We add all the numbers together, and all the variables

-3b-12=0

We move all terms containing b to the left, all other terms to the right

-3b=12

b=12/-3

b=-4

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