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Mathlopnik [Edit]

Trying to help my son with his math. I get the idea here, but I can’t make it to the finish.

Illustration for article titled Mathlopnik [Edit]
Photo: me

Trying to figure out what CE is.

It looks to me like CE = (BD + DE) - BC

But that’s where my math skills fail me.

Update: I was right all along, I just screwed up on my algebra. Thanks to all who chimed in.

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