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I didn't used to think that -3(x-2y-1) + 7x -4 + 8y was a socioeconomic barrier. I mean, yeah, I'd been to college. I knew that Calc 1 was an engineering weed-out class. I'd seen E.G. 50 at Penn State destroy people who were otherwise very qualified to become engineers -- but they didn't see like engineers and so they washed out. I was surprisingly OK with the concept of weed-out classes, when I was young and figured everybody had the same shot at stuff because everybody was just like me and of course the playing field was level. (Ah, the arrogance of youth!)

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