7x+7x-2=40-7x

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Solution for 7x+7x-2=40-7x equation: 



7x+7x-2=40-7x

We move all terms to the left:

7x+7x-2-(40-7x)=0

We add all the numbers together, and all the variables

7x+7x-(-7x+40)-2=0

We add all the numbers together, and all the variables

14x-(-7x+40)-2=0

We get rid of parentheses

14x+7x-40-2=0

We add all the numbers together, and all the variables

21x-42=0

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

21x=42

x=42/21

x=2

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