x\/(1-6%) +(833-x)\/(1+5%)=830 这个式子怎么解?
x\/(1-6%) +(833-x)\/(1+5%)=830 x\/0.94 +(833-x)\/1.05=830 左右同时乘以0.94*1.05 1.05x+0.94*833-0.94x=830*0.94*1.05 0.11x=0.94(830*1.05-833)0.11x=0.94*38.5 x=0.94*38.5\/0.11 x=0.94*350 x=329 ...
X(1-6%)+(830-X)(1-5%)-3=830 求详细解题过程~
解:X(1-6%)+(830-X)(1-5%)=833 0.94X+0.95(830-X)=833 0.94X+0.95*830-0.95X=833 -0.01X+788.5=833 X=-4450
X(1-6%)+(830-X)(1-5%)-3=830 X(1-6%)+(830-X)(1+5%)-3=830
X(1-6%)+(830-X)(1-5%)-3=830 X-6X%+830-830×5%-X+5X%-3=830 -X%-830×5%=3 -X-830×5=300 X=-4450
方程求解(1-6%)(830-y)+(1+5%)y=833
回答:94%(830-y)+105%y=833 780.2-0.94y+1.05y=833 0.11y=52.8 y=480
(1-6%)x+(1+5%)(830-x)=830+3。化简后为啥会是11%x=830乘5%-3
1 2011-08-26 x\/(1-6%) +(833-x)\/(1+5%)=830 这... 3 2012-04-26 X+Y=830 (1-6%)X+(1=5%)Y=830+3 ... 2017-03-21 11%=0.6(1+X)\/[12(1-6%)]+X 求解X详... 1 2015-05-21 方程求解(1-6%)(830-y)+(1+5%)y=833 1 2014-10-06 已知x:(x+1)=(1-x):...
(1-6%)X+(1+5%)(830-X)=830+3 求详细解答呀!!!
(|-6%)x-(1+5%)x+(1十5%)*83O-830=3 X=35O
求方程式过程:(1)x+y=830,(2)(1-6%)x+(1+5%)x=830+3 解得x=350,过程啊...
x+y=830 =>x=830-y ...① (1-6%)x+(1+5%)y=830+3 =>94x+105y=83300 ...② 将①代入②得94*(830-y)+105y=83300即11y=83300-830*94=5280 y=480 代入①得x=350
在X(1+6%)+(12200-X)(1-5%)-12200=50 1.06X+0.95(12200-X)=50+1220...
设甲为x,乙为12200-x x (1+6%)+(12200-x)×(1-5%)=12250+50 其中x为去年的甲种的销量;(12200-x)×(1-5%)表示今年乙的销量。
X(1+6%)+(12200-X)(1-5%)-12200=50怎么解
X(1+6%)+(12200-X)(1-5%)-12200=50 1.06X+0.95(12200-X)=50+12200 1.06X-0.95X+0.95×12200=12250 0.11X=12250-0.95×12200 0.11X=660 X=660÷0.11 X=6000
一元一次方程应用题
(1+6%)x+(1-5%)(12200-x)=12200+50 解得x=6000 去年乙种鞋卖出12200-x=12200-6000=6200(双)答:去年甲种鞋卖出6000双,乙种鞋卖出6200双。第二题 设绳长x米,则竹竿长(x-0.5)米,根据题意,得 0.5x=(x-0.5)-0.5 解得x=2 竹竿长x-0.5=2-0.5=1.5(米)答:绳长2...