Delete Sensitive blitzprog May 30, 2015 at 10:55AM EDT What the image doesn't say is: The other 10% will solve it wrong +25 Reply
Delete Sensitive blitzprog May 30, 2015 at 12:02PM EDT in reply to xc---# he didn't divide, he substracted. 4Y + 8 – 4Y = 4Y – 4Y <=> 8 = 0 +7 Reply
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blitzprog
May 30, 2015 at 10:55AM EDT
blitzprog
May 30, 2015 at 12:02PM EDT in reply to