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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

4.2(5x+15)-(-41x)=0

We multiply parentheses

21x-(-41x)+63=0

We get rid of parentheses

21x+41x+63=0

We add all the numbers together, and all the variables

62x+63=0

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

62x=-63

x=-63/62

x=-1+1/62

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