X-0.75x=4求解

polly200052022-10-04 11:39:541条回答

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maybe1443 共回答了25个问题 | 采纳率92%
X-0.75x=4
0.25x=4
x=16
1年前

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(0.75x+2)/[(1+0.75)x+2]=5/11
(0.75x+2)/[(1+0.75)x+2]=5/11
怎么解?
barbabobo1年前2
wnat 共回答了20个问题 | 采纳率85%
(0.75x+2)/[(1+0.75)x+2]=5/11
(0.75x+2)/(1.75x+2)=5/11
(1.75x+2)x5=(0.75x+2)x11
8.75x+10=8.25x+22
8.75x-8.25x=22-10
0.5x=12
x=24