x=-6-7-8

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Solution for x=-6-7-8 equation: 



x=-6-7-8

We move all terms to the left:

x-(-6-7-8)=0

We add all the numbers together, and all the variables

x-(-21)=0

We add all the numbers together, and all the variables

x+21=0

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

x=-21

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