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Mathematics, 09.09.2021 14:00 wwwgr78

I know Im asking a lot but HEL You have 36 postcards. This is 19 more than n, the number of postcards your friend has. Find how many postcards your friend has by solving the equation n + 19 = 36

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I know Im asking a lot but HEL You have 36 postcards. This is 19 more than n, the number of postca...
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