4b+20=7b-10

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Solution for 4b+20=7b-10 equation: 



4b+20=7b-10

We move all terms to the left:

4b+20-(7b-10)=0

We get rid of parentheses

4b-7b+10+20=0

We add all the numbers together, and all the variables

-3b+30=0

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

-3b=-30

b=-30/-3

b=+10

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