小明看一本小说,第一天看了全书的五分之二还多2页用方程
2023-11-29 08:33
匿名用户
2023-11-29 13:32
设这拍搭咐袭纯本书一共X页,
(2/枝枯5)x + (1/3)(1-2/5)x + 60 = x;
(2/5)x + (1/5)x + 60 = x;
(3/5)x + 60 = x;
60 = (2/5)x;
x = 150(页)
(2/枝枯5)x + (1/3)(1-2/5)x + 60 = x;
(2/5)x + (1/5)x + 60 = x;
(3/5)x + 60 = x;
60 = (2/5)x;
x = 150(页)
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