解二元一次方程组中也蕴涵着数学思想呢.解二元一次方程组的基本思想是化归思想,即“化繁为简,化生为熟”.在解二元一次方程组时,往往通过减少未知数的个数,使二元方程最终转化为一元方程,进而解出未知数.这个过程也是将关于x,y的二元一次方程组,转化成关于x(或y)的一元一次方程的过程,即“化生为熟”.至于其中的化归策略,既可以利用代入法进行消元,也可以利用加减法进行消元. Solution Binary Equations also contain mathematical ideas. The basic idea of ​​solving binary linear equations is to convert the thought, that is, , The unknowns are solved by reducing the number of unknowns so that the binary equation is finally transformed into a unary equation and the unknowns are solved. This process also transforms the binary system of x, y into a unary one about x (or y) The process of an equation, that is, “born as cooked.” As one of the return to strategy, either by using the substitution method to eliminate, you can also use the addition and subtraction to eliminate.