100=60+4[(x-5)/(30-5)]*6% 高手来帮我下,X是多少,100=60+40[(x-5)/(30-5)]*6%

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100=60+4[(x-5)/(30-5)]*6% 高手来帮我下,X是多少,100=60+40[(x-5)/(30-5)]*6%
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100=60+4[(x-5)/(30-5)]*6% 高手来帮我下,X是多少,100=60+40[(x-5)/(30-5)]*6%
100=60+4[(x-5)/(30-5)]*6% 高手来帮我下,X是多少,
100=60+40[(x-5)/(30-5)]*6%

100=60+4[(x-5)/(30-5)]*6% 高手来帮我下,X是多少,100=60+40[(x-5)/(30-5)]*6%
100=60+40[(x-5)/(30-5)]*6%
40=40[(x-5)/(30-5)]*6%
[(x-5)/(30-5)]*6%=1
[(x-5)/25]=1/6%
[(x-5)/25]=100/6=50/3
x-5=1250/3
所以,x=5+1250/3=1265/3

题目没出错？
一个x????

100=60+40[(x-5)/(30-5)]*6%
也就是100=60+2.4[(x-5)/25]
40 = (2.4x - 12) / 25
2.4x - 12 = 1000
2.4x = 1012
x = 1012/2.4

100=60+40[(x-5)/(30-5)]*6%
40[(x-5)/(30-5)]*6%=40
[(x-5)/(30-5)]*6%=1
[(x-5)/(25)]=16.6
x-5=415
x=420

100=60+40[(x-5)/(30-5)]*6%
100=60+40[(x-5)/25]*6%
40=40[(x-5)/25]*6%
1=[(x-5)/25]*6%
1/6%*25=x-5
1250/3=x-5
x=1250/3+5
x=1265/3
注意：题目和问题补充不一样！一个是40，一个是4

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