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课题一次不定方程适用年级初中一年级学期2005-2006学年度第一学期训练目的1.使学生掌握判断整系数不定方程有整数解的方法;2.使学生理解并掌握整数离析法术整系数不定方程的整数解和正整数解;3.使学生应用消元思想将三元一次不定方程转化为二元不定方程求解.典型范例求不定方程5x+7y=978的整数解,并求正整数解的个数.
Subject Once indefinite equation Applicable grade Junior high school First grade semester 2005-2006 First year semester Training objective 1. To enable students to master the method of determining the integer coefficient indefinite equation with an integer solution; 2. To enable students to understand and master the integer segregation factor integral coefficient indefinite equation The integer solution and the positive integer solution; 3. To enable students to use the elimination element of the idea to convert the ternary indefinite equation to a binary indefinite equation. Typical example to find the integer solution of the indefinite equation 5x+7y=978, and find the positive integer solution number.