X(1-6%)+(830-X)(1+5%)-3=830
追答0.94X+1.05(830-X)=833
0.94X+1.05*830-1.05X=833
-0.11X+871.5=833
X=350
X(1-6%)+(830-X)(1+5%)-3=830
追答X(1-6%)+(830-X)(1+5%)-3=830
X-6X%+830+830×5%-X-5X%-3=830
-11X%+830×5%=3
-11X+830×5=300
-11X=-3850
X=350
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
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 ...
(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
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(1-6%)x+(1+5%)(830-x)=830+3。化简后为啥会是11%x=830乘5%-3
2013-01-14 X(1-6%)+(830-X)(1-5%)-3=830 求详... 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-...
某公司去年有员工830人,今年男员工人数比去年减少6%,女员工人数比去年增...
设今年男员工X人,则女员工830+3-x=833-x 去年男员工x\/(1-6%) 女员工(833-x)\/(1+5%)去年总人数 x\/(1-6%) +(833-x)\/(1+5%)=830 x=329
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此题如何用正常解法去解?
设去年男女各为x,y x+y=830 x(1-6%)+y(1+5%)=833 解方程后,再求x(1-6%)
某公司去年有员工830人,今年男员工人数比去年减少6%,女员工人数比去年增...
设此题答案为329人 。设去年男员工为x人,女员工为y人,则有X+Y=830 (1-6%)X+(1+5%)Y=830+3,由以上二试解得X=350,所以今年男员工有350X94%=329人