1200/x+(3000-1200)/(120%x)=27
来源:学生作业帮助网 编辑:六六作业网 时间:2024/08/15 07:39:48
1200/x+(3000-1200)/(120%x)=271200/x+(3000-1200)/(120%x)=271200/x+(3000-1200)/(120%x)=271200/x+1800/1
1200/x+(3000-1200)/(120%x)=27
1200/x+(3000-1200)/(120%x)=27
1200/x+(3000-1200)/(120%x)=27
1200/x+1800/1.2x=27
1200/x+1500/x=27
2700/x=27
x=2700÷27
x=100
.
方程两边同时乘x得:
1200+1800/1.2=27x
27x=2700
x=100
1200/x+(3000-1200)/(120%x)=27
1440×(x-1)=1200x x等于多少
1200(7-x)=1500x
(X+X*20%)-[(1200-X)-(1200-X)*20%]=40%
X+X*20%-(1200-X)-(1200-X)*20%=40%
1200/x-1200/(x+2)=30
(2+X/1200)/(2+1.24X/1200)=(2+X/1200)/(2+1.8X/1200)=
3000/x-10 -3000/x=15 36/x -36/x=3 18/x=36/1.25 -6 60/x +240/2x=9 1200/x-1200/x+2 过程一定要清楚空格后面是为了区分开来所以36/x -36/x-3=1 18/x=36/1.25 -6 60/x +240/2x=9 1200/x-1200/x+2=30 不好意思 x-10是分母!1.25是分母!不
(40-x)(2x+20)=1200
(40-x)(20+2x)=1200
(1200-50X)(30+X)=28000
【(1+x)1200】(1+x)=3600
1500:1200=(x-6):x 怎么解
1500x=1200×(6-x)怎么解?
解方程:1500x=1200乘(6-x)
1200*X=800*(6-X) 解比例
求解[80-2(x-10)]x=1200thanks
[80-2(x-10)]x=1200