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14-11-2017
Mathematics

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if 13y+25=64, what is the value of 4y-7?

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papenfuse papenfuse

14-11-2017

13y + 25 = 64
       - 25    -25
        13y = 39
    13/13     39/13
            y = 3

4y - 7
4(3) - 7
12 - 7
5

The answer is: 5

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