286=77-x

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Solution for 286=77-x equation: 



286=77-x

We move all terms to the left:

286-(77-x)=0

We add all the numbers together, and all the variables

-(-1x+77)+286=0

We get rid of parentheses

1x-77+286=0

We add all the numbers together, and all the variables

x+209=0

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

x=-209

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