-47=5(-9-4b)+20b

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Solution for -47=5(-9-4b)+20b equation: 



-47=5(-9-4b)+20b

We move all terms to the left:

-47-(5(-9-4b)+20b)=0

We add all the numbers together, and all the variables

-(5(-4b-9)+20b)-47=0



We calculate terms in parentheses: -(5(-4b-9)+20b), so:

5(-4b-9)+20b

We add all the numbers together, and all the variables

20b+5(-4b-9)

We multiply parentheses

20b-20b-45

We add all the numbers together, and all the variables

-45

Back to the equation:

-(-45)



We add all the numbers together, and all the variables

-2!=0

There is no solution for this equation

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