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posted by Zoey Thursday, September 19, 2013 at 10:37pm.
an algebra book weighs 6 oz less than twice as much as grammar book. if 5 algebra books weigh the same as 8 grammar books, how much does an algebra book weigh?
a = 2g-6 5a = 8g 5a = 8(a+6)/2 5a = 4a+12 a = 12
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