-66-x=78

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Solution for -66-x=78 equation: 



-66-x=78

We move all terms to the left:

-66-x-(78)=0

We add all the numbers together, and all the variables

-1x-144=0

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

-x=144

x=144/-1

x=-144

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