-4(1+7b)-7(-2-b)=73

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Solution for -4(1+7b)-7(-2-b)=73 equation: 



-4(1+7b)-7(-2-b)=73

We move all terms to the left:

-4(1+7b)-7(-2-b)-(73)=0

We add all the numbers together, and all the variables

-4(7b+1)-7(-1b-2)-73=0

We multiply parentheses

-28b+7b-4+14-73=0

We add all the numbers together, and all the variables

-21b-63=0

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

-21b=63

b=63/-21

b=-3

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