7b-3b=b-3

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Solution for 7b-3b=b-3 equation: 



7b-3b=b-3

We move all terms to the left:

7b-3b-(b-3)=0

We add all the numbers together, and all the variables

4b-(b-3)=0

We get rid of parentheses

4b-b+3=0

We add all the numbers together, and all the variables

3b+3=0

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

3b=-3

b=-3/3

b=-1

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