10(1+2b)=-20

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Solution for 10(1+2b)=-20 equation: 



10(1+2b)=-20

We move all terms to the left:

10(1+2b)-(-20)=0

We add all the numbers together, and all the variables

10(2b+1)-(-20)=0

We add all the numbers together, and all the variables

10(2b+1)+20=0

We multiply parentheses

20b+10+20=0

We add all the numbers together, and all the variables

20b+30=0

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

20b=-30

b=-30/20

b=-1+1/2

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