7x-2x-4x=x+3x+12

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Solution for 7x-2x-4x=x+3x+12 equation: 



7x-2x-4x=x+3x+12

We move all terms to the left:

7x-2x-4x-(x+3x+12)=0

We add all the numbers together, and all the variables

7x-2x-4x-(4x+12)=0

We add all the numbers together, and all the variables

x-(4x+12)=0

We get rid of parentheses

x-4x-12=0

We add all the numbers together, and all the variables

-3x-12=0

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

-3x=12

x=12/-3

x=-4

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