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三元一次方程组对于初二的学生来说对它的列式、求解都很熟悉.如果用它来解初二物理的一些难题,往往能化难为易,迎刃而解.例1 一个瓶子,装满水称总质量为32g,
The ternary first-order equation group is very familiar with its columnar formula and solution for the second grade students. If it is used to solve some of the problems of the first two physics, it can often be difficult and easy to solve. Example 1 A bottle filled with water The total mass of water is 32g.