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I am a GIRL. Not a He. It was my sister's homework. (I have three, ages 6, 9, and 11) I was never good at math, and I did not have the time to figure it out. I thank you for helping me. I did google it, but couldn't find it. Thank you
Look I really don't care. You got your answer and I ended up getting someone else's panties in a twist for not doing things their way. This thread can be locked since it no longer serves a purpose. Besides, she isn't letting her sister learn by doing her homework.
Here's one way to logically decide on the outcome.
You have their sum, and you know there is two numbers. Their difference is four, so subtract four from 22. Divide that number by two, and you get two numbers, each are the same number, correct? You divide by two because there is two numbers. Now, add four to one of the numbers, and check your work.