SOLUTION: The number of items on two grocery lists differs by 7. The total number of items is 33. How many items are on each list?

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Question 780553: The number of items on two grocery lists differs by 7. The total number of items is 33. How many items are on each list?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+x+7=33
2x=33-7
2x=26
x=26/2
x=13
x+7=20