7(-3/7x+1)=-20

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Solution for 7(-3/7x+1)=-20 equation: 



7(-3/7x+1)=-20

We move all terms to the left:

7(-3/7x+1)-(-20)=0



Domain of the equation: 7x+1)!=0

x∈R



We add all the numbers together, and all the variables

7(-3/7x+1)+20=0

We multiply parentheses

-21x+7+20=0

We add all the numbers together, and all the variables

-21x+27=0

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

-21x=-27

x=-27/-21

x=1+2/7

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