In this research, who has studied research achievement list of basic mathematics. Solve a system of linear equations with two variables using the unified job document teaching and learning of school students 3/2. Chiang Mai Province. For tools used in research with a unified work orders are documents 2 lessons and a test measuring achievement. The information is analyzed by the performance of the job. Using averages, standard deviation, and average per cent research jobs, though enterprises's teaching to solve a system of linear equations in two variables, in effect make the achievement of students.
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