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五年级数学上册较难的方程的一些题目,急!!!!!!!

2025-04-03 22:06:58

推荐回答（3个）

回答1：

一、5.5b
二、1、x=50 2、x=36.5 3、2x+16 4、x=20×2+16
三、1、3x=4.7-4 3x=0.7 x=7/30或0.23 2、-6x=42.9 x=-7.15
四、1、设每小时行驶x千米 3x+60=300 x=80
2、设下层有x本书 180=2.5x-20 x=80
3、设原有x箱苹果 15x+165=345 x=12
4、设准乘x人 5x+15=100 x=17
5、设女儿今年x岁 6（x-3）=33-3 x=8

回答2：

要打完那么多提的过程需要时间啊，，，

回答3：

3X+5X=48 14X-8X=12 6*5+2X=44

20X-50=50 28+6X=88 32-22X=10

24-3X=3 10X*（5+1）=60 99X=100-X

X+3=18 X-6=12 56-2X=20

4y+2=6 x+32=76 3x+6=18

16+8x=40 2x-8=8 4x-3*9=29

8x-3x=105 x-6*5=42 x+5=7

2x+3=10 12x-9x=9 6x+18=48

56x-50x=30 5x=15 78-5x=28

32y-29=3 5x+5=15 89x-9=80

100-20x=20 55x-25x=60 76y-75=1

23y-23=23 4x-20=0 80y+20=100

53x-90=16 2x+9x=11 12y-12=24

80+5x=100 7x-8=6 65x+35=100

19y+y=40 25-5x=15 79y+y=80

42x+28x=140 3x-1=8 90y-90=90

80y-90=70 78y+2y=160 88-x=80

9-4x=1 20x=40 65y-30=100

51y-y=100 85y+1=-86 45x-50=40

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