在线解一元方程：
直接输入任意的一元方程，然后点击“下一步”按钮，即可获得方程的解。
它支持包含数学函数的方程。
直接输入任意的一元方程，然后点击“下一步”按钮，即可获得方程的解。
它支持包含数学函数的方程。
总述：本次共解1题。其中
☆方程1题
〖 1/1方程〗
作业：求方程 1/25*((3/4)*(5+6/7)+(1/4)*(5+x))+19/100*(5-7x) = 77/100 的解.
题型：方程
解:原方程：
| 1 | ÷ | 25 | × | ( | ( | 3 | ÷ | 4 | ) | ( | 5 | + | 6 | ÷ | 7 | ) | + | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | ) | + | 19 | ÷ | 100 | × | ( | 5 | - | 7 | x | ) | = | 77 | ÷ | 100 |
| 方程左边 = | 1 25 | ( | ( | 3 | ÷ | 4 | ) | ( | 5 | + | 6 | ÷ | 7 | ) | + | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
1 25 | ( | ( | 3 | ÷ | 4 | ) | ( | 5 | + | 6 | ÷ | 7 | ) | + | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | ) | + | 19 100 | ( | 5 | - | 7 | x | ) | = | 77 | ÷ | 100 |
| 方程左边 = | 1 25 | ( | 3 | ÷ | 4 | ) | ( | 5 | + | 6 | ÷ | 7 | ) | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 1 25 | × | 3 | ÷ | 4 | × | ( | 5 | + | 6 | ÷ | 7 | ) | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 3 100 | ( | 5 | + | 6 | ÷ | 7 | ) | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 3 100 | × | 5 | + | 3 100 | × | 6 | ÷ | 7 | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 3 20 | + | 9 350 | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 123 700 | + | 1 25 | ( | 1 | ÷ | 4 | ) | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 123 700 | + | 1 25 | × | 1 | ÷ | 4 | × | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 123 700 | + | 1 100 | ( | 5 | + | x | ) | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 123 700 | + | 1 100 | × | 5 | + | 1 100 | x | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 123 700 | + | 1 20 | + | 1 100 | x | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 79 350 | + | 1 100 | x | + | 19 100 | ( | 5 | - | 7 | x | ) |
| = | 79 350 | + | 1 100 | x | + | 19 100 | × | 5 | - | 19 100 | × | 7 | x |
| = | 79 350 | + | 1 100 | x | + | 19 20 | - | 133 100 | x |
| = | 823 700 | - | 33 25 | x |
823 700 | - | 33 25 | x | = | 77 | ÷ | 100 |
| 方程右边 = | 77 100 |
823 700 | - | 33 25 | x | = | 77 100 |
移项：即，把含有未知数的项移到方程左边，把只含有常数的项移到方程的右边。
注意，移项时，该项前面的正负号要改变，即，正号变为负号，而负号要改变为正号。这与方程两边同时加上或者减去该项是等价的。
| - | 33 25 | x | = | 77 100 | - | 823 700 |
合并方程右边的各项：
| - | 33 25 | x | = | - | 71 175 |
方程两边同时乘以 -1 得：
33 25 | x | = | 71 175 |
把未知数的系数化为 1：
| x | = | 71 175 | ÷ | 33 25 |
| = | 71 175 | × | 25 33 |
| = | 71 7 | × | 1 33 |
得到方程的解：
| x | = | 71 231 |
把结果化为小数形式：
| x | = | 0.307359 |