7b+10=3b+30

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Solution for 7b+10=3b+30 equation: 



7b+10=3b+30

We move all terms to the left:

7b+10-(3b+30)=0

We get rid of parentheses

7b-3b-30+10=0

We add all the numbers together, and all the variables

4b-20=0

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

4b=20

b=20/4

b=5

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