3b-7(2+4b)=-139

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Solution for 3b-7(2+4b)=-139 equation: 



3b-7(2+4b)=-139

We move all terms to the left:

3b-7(2+4b)-(-139)=0

We add all the numbers together, and all the variables

3b-7(4b+2)-(-139)=0

We add all the numbers together, and all the variables

3b-7(4b+2)+139=0

We multiply parentheses

3b-28b-14+139=0

We add all the numbers together, and all the variables

-25b+125=0

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

-25b=-125

b=-125/-25

b=+5

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