初等代数示例

$- 9 + 4 r = 4 r - 3 - 6$

解题步骤 1

从 $- 3$ 中减去 $6$ 。

$- 9 + 4 r = 4 r - 9$

解题步骤 2

画出方程每一边的图像。其解即为交点的 x 值。

$r \approx - 31.8\overline{9}, - 31.7\overline{9}, - 31.6\overline{9}, - 31.5\overline{9}, - 31.4\overline{9}, - 31.3\overline{9}, - 31.2\overline{9}, - 31.1\overline{9}, - 31.0\overline{9}, - 31, - 30.8\overline{9}, - 30.7\overline{9}, - 30.6\overline{9}, - 30.5\overline{9}, - 30.4\overline{9}, - 30.3\overline{9}, - 30.2\overline{9}, - 30.1\overline{9}, - 29.8\overline{9}, - 29.7\overline{9}, - 15.8\overline{9}, - 15.6\overline{9}, - 15.5\overline{9}, - \frac{31}{2}, - 15.3\overline{9}, - 15.1\overline{9}, - 15.0\overline{9}, - 15, - 14.8\overline{9}, - 14.6\overline{9}, - 14.5\overline{9}, - \frac{29}{2}, - 14.3\overline{9}, - 14.1\overline{9}, - 14.0\overline{9}, - 14, - 13.8\overline{9}, - 13.7\overline{9}, - 13.6\overline{9}, - 7.3, - \frac{36}{5}, - 4, - 3.9, - 3.7, - \frac{18}{5}, - \frac{7}{2}, - \frac{17}{5}, - \frac{16}{5}, - 3.1, - 3, - 2.9, - \frac{14}{5}, - 2.7, - \frac{13}{5}, - \frac{12}{5}, - 2.3, - \frac{11}{5}, - 2, - 1.9, - \frac{9}{5}, - 1.7$

解题步骤 3

初等代数 示例

初等代数示例