7x-2=12+x+8x

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Solution for 7x-2=12+x+8x equation: 



7x-2=12+x+8x

We move all terms to the left:

7x-2-(12+x+8x)=0

We add all the numbers together, and all the variables

7x-(9x+12)-2=0

We get rid of parentheses

7x-9x-12-2=0

We add all the numbers together, and all the variables

-2x-14=0

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

-2x=14

x=14/-2

x=-7

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