2b-4=-7

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Solution for 2b-4=-7 equation: 



2b-4=-7

We move all terms to the left:

2b-4-(-7)=0

We add all the numbers together, and all the variables

2b+3=0

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

2b=-3

b=-3/2

b=-1+1/2

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