怎么做,题目在下面,是解方程,求得数和过程。。。。
3Ⅹ+2.5×4=24.71/2Ⅹ-0.25Ⅹ=8Ⅹ+7/8Ⅹ=3/428/Ⅹ=0.4/0.1============1/10:Ⅹ=1/8:1/42/3Ⅹ+3/4Ⅹ=1/...
3Ⅹ+2.5×4=24.7 1/2Ⅹ-0.25Ⅹ=8 Ⅹ+7/8Ⅹ=3/4 28/Ⅹ=0.4/0.1
= = = =
= = = =
= = = =
1/10:Ⅹ=1/8:1/4 2/3Ⅹ+3/4Ⅹ=1/6
= =
= =
= =
怎么做? 是解方程,求得数和过程。。。。 展开
= = = =
= = = =
= = = =
1/10:Ⅹ=1/8:1/4 2/3Ⅹ+3/4Ⅹ=1/6
= =
= =
= =
怎么做? 是解方程,求得数和过程。。。。 展开
2个回答
展开全部
3x+2.5×4=24.7
x =(24.7-2.5×4)/3
x=(24.7-10)/3
x =14.7/3
x=4.9
1/2Ⅹ-0.25Ⅹ=8
0.75x=8
x=8×3/4
x=6
Ⅹ+7/8Ⅹ=3/4
15/8x=3/4
x=3/4×8/15
x=2/5
28/Ⅹ=0.4/0.1
x=4/28=7
1/10:Ⅹ=1/8:1/4
x=1/10×2
x=1/5
2/3Ⅹ+3/4Ⅹ=1/6
13/12x=1/6
x=1/6×12/13
x=2/13
x =(24.7-2.5×4)/3
x=(24.7-10)/3
x =14.7/3
x=4.9
1/2Ⅹ-0.25Ⅹ=8
0.75x=8
x=8×3/4
x=6
Ⅹ+7/8Ⅹ=3/4
15/8x=3/4
x=3/4×8/15
x=2/5
28/Ⅹ=0.4/0.1
x=4/28=7
1/10:Ⅹ=1/8:1/4
x=1/10×2
x=1/5
2/3Ⅹ+3/4Ⅹ=1/6
13/12x=1/6
x=1/6×12/13
x=2/13
更多追问追答
追问
那个第一题 /3 是什么意思?
那个第一题 /3 是什么意思?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询