-4-5b=-7b

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Solution for -4-5b=-7b equation: 



-4-5b=-7b

We move all terms to the left:

-4-5b-(-7b)=0

We get rid of parentheses

-5b+7b-4=0

We add all the numbers together, and all the variables

2b-4=0

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

2b=4

b=4/2

b=2

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