7x-4=8+x

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Solution for 7x-4=8+x equation: 



7x-4=8+x

We move all terms to the left:

7x-4-(8+x)=0

We add all the numbers together, and all the variables

7x-(x+8)-4=0

We get rid of parentheses

7x-x-8-4=0

We add all the numbers together, and all the variables

6x-12=0

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

6x=12

x=12/6

x=2

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