一元一次方程计算训练题
- 外汇
- 2025-04-10 04:25:07
- 1

一元一次方程是指只含有一个未知数,并且未知数的最高次数为1的方程。以下是一些一元一次方程的计算训练题:1. 解方程:2x + 5 = 192. 解方程:3x 7 = 1...
一元一次方程是指只含有一个未知数,并且未知数的最高次数为1的方程。以下是一些一元一次方程的计算训练题:
1. 解方程:2x + 5 = 19
2. 解方程:3x 7 = 11
3. 解方程:5x + 2 = 27
4. 解方程:4x 3 = 13
5. 解方程:6x + 1 = 29
6. 解方程:7x 4 = 17
7. 解方程:8x + 3 = 31
8. 解方程:9x 2 = 19
9. 解方程:10x + 4 = 33
10. 解方程:11x 3 = 21
下面是这些方程的解答过程:
1. 2x + 5 = 19
2x = 19 5
2x = 14
x = 14 / 2
x = 7
2. 3x 7 = 11
3x = 11 + 7
3x = 18
x = 18 / 3
x = 6
3. 5x + 2 = 27
5x = 27 2
5x = 25
x = 25 / 5
x = 5
4. 4x 3 = 13
4x = 13 + 3
4x = 16
x = 16 / 4
x = 4
5. 6x + 1 = 29
6x = 29 1
6x = 28
x = 28 / 6
x = 4.666...(即4又2/3)
6. 7x 4 = 17
7x = 17 + 4
7x = 21
x = 21 / 7
x = 3
7. 8x + 3 = 31
8x = 31 3
8x = 28
x = 28 / 8
x = 3.5
8. 9x 2 = 19
9x = 19 + 2
9x = 21
x = 21 / 9
x = 2.333...(即2又1/3)
9. 10x + 4 = 33
10x = 33 4
10x = 29
x = 29 / 10
x = 2.9
10. 11x 3 = 21
11x = 21 + 3
11x = 24
x = 24 / 11
x = 2.1818...(即2又1/11)
这些方程的解都是一元一次方程的解法,通过移项和除以系数来找到未知数的值。
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