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a-b-300 b=cx6 c=d+14 d=e: 6 e: 60= 19 Oaxb=10 b=c:9 c=d: 3 d+e=50 ex 9 = 207 (6) a x b = 90 b=cx3 c=d: 10 d-e = 250 e: 10 = 5​

Ab300 Bcx6 Cd14 De 6 E 60 19 Oaxb10 Bc9 Cd 3 De50 Ex 9 207 6 A X B 90 Bcx3 Cd 10 De 250 E 10 5 class=