五年级解方程算式

时间:2025-03-09 12:29:33 网络游戏

2x - 16 = 5.6

移项:2x = 5.6 + 16

简化:2x = 21.6

除以2:x = 10.8

3.2x + 1.5×2 = 12.6

移项:3.2x = 12.6 - 3

简化:3.2x = 9.6

除以3.2:x = 3

5(x - 2.5) = 5.5

分配律:5x - 12.5 = 5.5

移项:5x = 5.5 + 12.5

简化:5x = 18

除以5:x = 3.6

2(x + x + 0.5) = 9.8

分配律:2x + 2x + 1 = 9.8

合并同类项:4x + 1 = 9.8

移项:4x = 9.8 - 1

简化:4x = 8.8

除以4:x = 2.2

x - 0.8x = 6

合并同类项:0.2x = 6

除以0.2:x = 30

12x - 8x = 4.8

合并同类项:4x = 4.8

除以4:x = 1.2

7.5 + 2x = 15

移项:2x = 15 - 7.5

简化:2x = 7.5

除以2:x = 3.75

1.2x = 81.6

除以1.2:x = 68

x + 5.6 = 9.4

移项:x = 9.4 - 5.6

简化:x = 3.8

91 ÷ x = 1.3

转换为乘法:91 = 1.3x

除以1.3:x = 70

这些题目涵盖了基本的解方程技巧,包括移项、合并同类项、分配律和除法。通过练习这些题目,学生可以更好地掌握解方程的方法。