论文部分内容阅读
x=1,有的老师认为是方程,也有老师认为是方程的解,究竟哪一种观点正确?为什么?陕西永寿王晋远现行中小学数学教材给方程下的定义是:含有未知数的等式,叫方程。如果x=1中的x表示未知数,那么它就是方程。当然,x=1也是某些方程的解,如当x=1时,方程x+5=6等号左右两边的值相等,所以x=1是方程x+5=6的解。可能有老师认为x=1无需解方程就已知它的解,所以它不是含有未知数的等式。请注意,现行数学教材有关方程这
x = 1, some teachers think of equations, there are teachers that is the solution to the equation, what kind of view is correct? Why? Shaanxi Yongshou Wang Jinyuan current primary and secondary mathematics textbooks to the equation is defined as: contains an unknown equation, called equation. If x in x = 1 represents an unknown number, then it is an equation. Of course, x = 1 is also the solution of some equations. For example, when x = 1, the values of both sides of the equation x + 5 = 6 are equal, so x = 1 is the solution of the equation x + 5 = 6. Maybe the teacher thinks x = 1 knows its solution without solving the equation, so it is not an equation with unknowns. Please note that the current mathematics textbook about this equation