初一一元一次方程练习题

admin 头条 1

当然可以,以下是一些适合初一一元一次方程的练习题:

初一一元一次方程练习题-第1张图片-华宇财经

1. 解方程:3x 5 = 14

2. 解方程:2(x + 3) = 8

3. 解方程:5x 2 = 3x + 7

4. 解方程:x/2 + 4 = 6

5. 解方程:4(x 1) = 3x + 5

6. 解方程:-2x + 3 = 5x 4

7. 解方程:x + 2 = 2(x 1)

8. 解方程:3x 7 = 2(x + 3)

9. 解方程:5(x 2) = 2x + 10

10. 解方程:2x 3 = 3(2x 1)

解答:

1. 3x 5 = 14

3x = 14 + 5

3x = 19

x = 19 / 3

x = 6.33(小数形式)

2. 2(x + 3) = 8

2x + 6 = 8

2x = 8 6

2x = 2

x = 2 / 2

x = 1

3. 5x 2 = 3x + 7

5x 3x = 7 + 2

2x = 9

x = 9 / 2

x = 4.5

4. x/2 + 4 = 6

x/2 = 6 4

x/2 = 2

x = 2 2

x = 4

5. 4(x 1) = 3x + 5

4x 4 = 3x + 5

4x 3x = 5 + 4

x = 9

6. -2x + 3 = 5x 4

-2x 5x = -4 3

-7x = -7

x = -7 / -7

x = 1

7. x + 2 = 2(x 1)

x + 2 = 2x 2

x 2x = -2 2

-x = -4

x = 4

8. 3x 7 = 2(x + 3)

3x 7 = 2x + 6

3x 2x = 6 + 7

x = 13

9. 5(x 2) = 2x + 10

5x 10 = 2x + 10

5x 2x = 10 + 10

3x = 20

x = 20 / 3

x = 6.67(小数形式)

10. 2x 3 = 3(2x 1)

2x 3 = 6x 3

2x 6x = -3 + 3

-4x = 0

x = 0

请注意,第1题的解为小数,但在实际考试中,可能需要根据题目要求给出分数形式或小数形式。