12/11X-120%X=6.5打错了,应该是11/12X-120%X=6.5

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 16:50:12
12/11X-120%X=6.5打错了,应该是11/12X-120%X=6.5
xN@_Lb<W}CFc)H@*~$Ə֦VS2[PCso?;_YW! s"wNz"ys)ѓ/-XpbFo'3<|mDhv.2W2Gwpbrx6灑&$:7=&YA"H

12/11X-120%X=6.5打错了,应该是11/12X-120%X=6.5
12/11X-120%X=6.5
打错了,应该是11/12X-120%X=6.5

12/11X-120%X=6.5打错了,应该是11/12X-120%X=6.5
小朋友,上网找答案的方式值得鼓励!
另外不要只注重答案,更应知道解题的过程.
把它变成(11/12-14.4/12)X=6.5
即(55/60-72/60)X=6.5
x=-(60/17*6.5)
x=-39/17

715/12

12/11X-120%X=6.5
12/11X-12/100X=13/2
12/11X-6/5X=13/2
(60-66)/55X=13/2
-6/55X=13/2
X=(13/2)/(-6/55)
X=-715/12

-390/17

(11/12-14.4/12)X=6.5
解 (55/60-72/60)X=6.5
x=-(60/17*6.5)
x=-39/17