2x+5x=X-12

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Solution for 2x+5x=X-12 equation: 



2x+5x=x-12

We move all terms to the left:

2x+5x-(x-12)=0

We add all the numbers together, and all the variables

7x-(x-12)=0

We get rid of parentheses

7x-x+12=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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