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

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