4.2(15+5x)=-20-21x-x

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Solution for 4.2(15+5x)=-20-21x-x equation: 



4.2(15+5x)=-20-21x-x

We move all terms to the left:

4.2(15+5x)-(-20-21x-x)=0

We add all the numbers together, and all the variables

4.2(5x+15)-(-22x-20)=0

We multiply parentheses

21x-(-22x-20)+63=0

We get rid of parentheses

21x+22x+20+63=0

We add all the numbers together, and all the variables

43x+83=0

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

43x=-83

x=-83/43

x=-1+40/43

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