20=-4-5b+2b

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Solution for 20=-4-5b+2b equation: 



20=-4-5b+2b

We move all terms to the left:

20-(-4-5b+2b)=0

We add all the numbers together, and all the variables

-(-3b-4)+20=0

We get rid of parentheses

3b+4+20=0

We add all the numbers together, and all the variables

3b+24=0

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

3b=-24

b=-24/3

b=-8

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