3b+-7=65-9b

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Solution for 3b+-7=65-9b equation: 



3b+-7=65-9b

We move all terms to the left:

3b+-7-(65-9b)=0

We add all the numbers together, and all the variables

3b-(-9b+65)-7+=0

We add all the numbers together, and all the variables

3b-(-9b+65)=0

We get rid of parentheses

3b+9b-65=0

We add all the numbers together, and all the variables

12b-65=0

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

12b=65

b=65/12

b=5+5/12

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