-x-x=3+11

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Solution for -x-x=3+11 equation: 



-x-x=3+11

We move all terms to the left:

-x-x-(3+11)=0

We add all the numbers together, and all the variables

-x-x-14=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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