6-x-x=15

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Solution for 6-x-x=15 equation: 



6-x-x=15

We move all terms to the left:

6-x-x-(15)=0

We add all the numbers together, and all the variables

-2x-9=0

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

-2x=9

x=9/-2

x=-4+1/2

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