2b+7=4b-9

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Solution for 2b+7=4b-9 equation: 



2b+7=4b-9

We move all terms to the left:

2b+7-(4b-9)=0

We get rid of parentheses

2b-4b+9+7=0

We add all the numbers together, and all the variables

-2b+16=0

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

-2b=-16

b=-16/-2

b=+8

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