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maja

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8p=158-14 8p=144 p=144/8 p=18
six , because if you mark number of friends with x you would get it like this : 3(x-4)=x 3x-12=x 3x-x=12 2x=12 X=12/2 X=6 and someone posted this question before you did
I think that you didn't write the question well , because it would me much more logically that your homework goes like this a^2 - 10a + 21 then this is : a^2 - 7a-3a + 21 a (a-7) – 3 (a-7) (a-3)(a-7) a - 10a + 21 - like this is : -9a + 21 = -3(3a-7)
E=2 F=1 G=7 H=8

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