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## Comment on

Range of Variable Expressions## this problem belongs to

## I can assure you that I'm the

I can assure you that I'm the creator and copyright owner of this video.

If you have any doubts, you can contact Magoosh about it.

Cheers,

Brent

## Now, why would you have to

## Earlier in the question, we

Earlier in the question, we concluded that the range = 2x + 2y

So, once we know that x+y = 20, we must multiply both sides by 2 to get: 2x + 2y = 40

Does that help?

Cheers,

Brent

## Hi,

Plz let me know if I can put values:

As the median is : x + y = 20

let x = 1 and y = 19 , 0 < x < y or 0 < 1 < 19

Now x - y = -18

and 3x + y = 22

The range from -18 to +22 = 41

Thanks

## Perfect!

Perfect!

Once we know that the median = 10, we can just plug in values for x and y to determine the range.

Cheers,

Brent