8b-7=4b+9

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Solution for 8b-7=4b+9 equation: 



8b-7=4b+9

We move all terms to the left:

8b-7-(4b+9)=0

We get rid of parentheses

8b-4b-9-7=0

We add all the numbers together, and all the variables

4b-16=0

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

4b=16

b=16/4

b=4

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