1/(x-7)+1/(x-8)=1/(x-10)-1/(x-11)
2个回答
原式
x-8+x-7=x-11-x+10
2x-15=-1
2x=14
x=7
相关问题
方程1/x-7+1/x-8=-1/x-10-1/x-11
(11+X):8=(X+1):7
11/7(x-1)=8/5x 7/1*x+1/8*(560-x)=76 x=1/3*(1/4*(x+22)+22)各位高
(8x+4)/5=(11x+1)/7+1
(8x+4)/5=(11x+1)/7+1.
(8x+4)/5=(11x+1)/7+1
1、5x6/1+6x7/1+7x8/1+8x9/1+9x10/1+……+19x20/1
(8x+4)/5=(11x+1)/7+1解
1/5x7+1/7x9+1/9x11+1/11x13+…+1/23x25
1/1x3+1/3x5+1/5x7+1/7x9+1/9x11+1/11x13=