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求解一元一次方程是求解一元一次不等式、二元一次方程组和不等式组的重要基础,在求解过程中我们需要掌握几点技巧,否则求解的过程比较繁琐。求解是需要观察、分析方程的特点,灵活运用五个步骤及等式的两个基本性质确定适当的解法。下面举例分析如下:一、含小数的方程利用等式的性质例1解方程:0.5x+0.7=1.9x。解:方程两边同乘以10,得:5x+7=19x,移项,合并同类项,得:14x=7。系数化为
Solving the one-quadratic equation is an important basis for solving a one-time inequality, two-time one-order equations and inequality groups. In the process of solving, we need to know a few tricks, otherwise, the process of solving is complicated. Solving is the need to observe and analyze the characteristics of the equation, flexible use of five steps and two basic properties of equations to determine the appropriate solution. The following examples are analyzed as follows: First, the equation with the decimal The nature of the equation Example 1 Solution equation: 0.5x + 0.7 = 1.9x. Solution: Equations on both sides of the equation multiplied by 10, have: 5x +7 = 19x, the shift, the merger of similar items, have: 14x = 7. Coefficient into