3*(7-2x)+7x=20

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Solution for 3*(7-2x)+7x=20 equation: 



3(7-2x)+7x=20

We move all terms to the left:

3(7-2x)+7x-(20)=0

We add all the numbers together, and all the variables

3(-2x+7)+7x-20=0

We add all the numbers together, and all the variables

7x+3(-2x+7)-20=0

We multiply parentheses

7x-6x+21-20=0

We add all the numbers together, and all the variables

x+1=0

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

x=-1

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