7x=7x+4+2x

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Solution for 7x=7x+4+2x equation: 



7x=7x+4+2x

We move all terms to the left:

7x-(7x+4+2x)=0

We add all the numbers together, and all the variables

7x-(9x+4)=0

We get rid of parentheses

7x-9x-4=0

We add all the numbers together, and all the variables

-2x-4=0

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

-2x=4

x=4/-2

x=-2

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