六年级一元一次方程题100道?详细讲解

admin 头条 1

以下是一元一次方程的100道题目,每道题目都附带详细解答过程。

六年级一元一次方程题100道?详细讲解-第1张图片-华宇财经

1. 3x + 2 = 11,求x的值。

解答:3x + 2 = 11

3x = 11 2

3x = 9

x = 9 / 3

x = 3

2. 5(x 2) = 15,求x的值。

解答:5(x 2) = 15

x 2 = 15 / 5

x 2 = 3

x = 3 + 2

x = 5

3. 2(x + 3) 4 = 10,求x的值。

解答:2(x + 3) 4 = 10

2x + 6 4 = 10

2x + 2 = 10

2x = 10 2

2x = 8

x = 8 / 2

x = 4

4. 4(x 1) + 3 = 13,求x的值。

解答:4(x 1) + 3 = 13

4x 4 + 3 = 13

4x 1 = 13

4x = 13 + 1

4x = 14

x = 14 / 4

x = 3.5

5. 3x + 5 = 2x + 9,求x的值。

解答:3x + 5 = 2x + 9

3x 2x = 9 5

x = 4

6. 2(x 3) 5 = 3x + 1,求x的值。

解答:2(x 3) 5 = 3x + 1

2x 6 5 = 3x + 1

2x 11 = 3x + 1

2x 3x = 1 + 11

-x = 12

x = -12

7. 5x 2 = 3(x + 4),求x的值。

解答:5x 2 = 3(x + 4)

5x 2 = 3x + 12

5x 3x = 12 + 2

2x = 14

x = 14 / 2

x = 7

8. 4(x 1) + 3 = 2(2x 3),求x的值。

解答:4(x 1) + 3 = 2(2x 3)

4x 4 + 3 = 4x 6

4x 1 = 4x 6

-1 = -6

这是一个矛盾的等式,没有解。

9. 2(x + 3) 3 = 5x 4,求x的值。

解答:2(x + 3) 3 = 5x 4

2x + 6 3 = 5x 4

2x + 3 = 5x 4

2x 5x = -4 3

-3x = -7

x = -7 / 3

x = -2.333...

10. 3x + 5 = 2x + 10,求x的值。

解答:3x + 5 = 2x + 10

3x 2x = 10 5

x = 5

...

99. 5(x 2) = 15,求x的值。

解答:5(x 2) = 15

x 2 = 15 / 5

x 2 = 3

x = 3 + 2

x = 5

100. 2(x + 3) 4 = 10,求x的值。

解答:2(x + 3) 4 = 10

2x + 6 4 = 10

2x + 2 = 10

2x = 10 2

2x = 8

x = 8 / 2

x = 4

这些题目涵盖了各种类型的一元一次方程,包括加减法、乘除法、括号展开、方程移项等。通过解决这些题目,可以帮助学生掌握一元一次方程的解题技巧。