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X+5/8=9/10 解方程,解方程

X-5/8=9/10 解:X=9/10+5/8 X=36/40+25/40 X=61/40

x+9.5=16.8 x=16.8-9.5 x=7.3 x÷1.5=0.4 x=0.4X1.5 x=0.6

1/3+x=5/9 x=5/9-3/9 x=2/9 x-7/8=1/5 x=8/40+35/40 x=43/40 x+3/10=9/20 x=9/20-6/20 x=3/20 x+1/4=5/12 x=5/12-3/12 x=2/12 x=1/6 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,...

15分之36

如果题目是(1.6x+5)/8x=7/9 那么 7*8x=9*(1.6x+5) 56x=14.4x+45 56x-14.4x=45 41.6x=45 x=45/41.6=1.08

(x-4)/(x-5) + (x-8)/(x-9) = (x-5)/(x-6) + (x-7)/(x-8) (x-5+1)/(x-5) + (x-9+1)/(x-9) = (x-6+1)/(x-6) + (x-8+1)/(x-8) 1+1/(x-5) + 1+1/(x-9) = 1+1/(x-6) + 1+1/(x-8) 1/(x-5) + 1/(x-9) = 1/(x-6) + 1/(x-8) 1/(x-9) - 1/(x-8) = 1/(x-6)...

(x-4)/(x-5)=(x-5+1)/(x-5)=1+(1/(x-5)) 原方程装换为 1+(1/(x-5))+1+(1/(x-9))=1+(1/(x-8))+1+(1/(x-6)) 1/(x-5)+1/(x-9)=1/(x-8)+1/(x-6) 设x-7=y 1/(y+2)+1/(y-2)=1/(y-1)+1/(y+1) 2y/(y*y-4)=2y/(y*y-1) y=0,x=7

噗,小学的题目。-4.5+5.5=1,10-1=9,两边同时乘以8,就得x=76.

先算加再算减 (4.85+5.15)-(5/9+4/9)=9x/8+1=10 x=72

(X-8)x7=(x-5)x3 7X-56=3X-15 4X=41 x=10.25

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