SOLUTION: Choose an even number then first divide it by 2 , this is answer a then with the same even number multiply it by 4, this is answer b then explain why b-a is always a multiple of

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Question 863278: Choose an even number then first divide it by 2 , this is answer a
then with the same even number multiply it by 4, this is answer b
then explain why b-a is always a multiple of 7

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Let x represent a even number
Question States***
b+-+a+=+4x+-+x%2F2
b+-+a+=+%288x+-+x%29%2F2
b+-+a+=+%287x%29%2F2
b+-+a+=+7%28x%2F2%29