-3(-7x+3)=20

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



-3(-7x+3)=20

We move all terms to the left:

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

We multiply parentheses

21x-9-20=0

We add all the numbers together, and all the variables

21x-29=0

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

21x=29

x=29/21

x=1+8/21

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