4.2(15.5x)=-20x-21-x

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Solution for 4.2(15.5x)=-20x-21-x equation: 



4.2(15.5x)=-20x-21-x

We move all terms to the left:

4.2(15.5x)-(-20x-21-x)=0

We add all the numbers together, and all the variables

4.2(+15.5x)-(-21x-21)=0

We multiply parentheses

63x-(-21x-21)=0

We get rid of parentheses

63x+21x+21=0

We add all the numbers together, and all the variables

84x+21=0

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

84x=-21

x=-21/84

x=-1/4

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