218=31-w

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Solution for 218=31-w equation: 



218=31-w

We move all terms to the left:

218-(31-w)=0

We add all the numbers together, and all the variables

-(-1w+31)+218=0

We get rid of parentheses

1w-31+218=0

We add all the numbers together, and all the variables

w+187=0

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

w=-187

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