45/(x-5)=2*45/(x-5+10) 100000/(x+1000)=80000/x 3/x=2/(x-6）
5/x=64/x+18 82/a=74/x+9 98/x=490/(x+3)
100/(20+x)=200/(50+x) 45/x=410/(x+8) 948-45/x=97/3x
1/2x=2/(x+3) x/(x+1)=2x/(3x+3)+1 2/(x-1)=4/(x^2-1)
5/(x^2+x)-1/(x^2-x)=0 (x-3)/(x+4)=(x+9)/(x-7) x/(x-1)=3/(2x-2)-2
2/(2x-1)=4/(4x^2-1) x/(x-4)=(x+1)/(x-1) (2x+1)/(x^2+x)=5/(6x+6)
3/2-1/(3x-1)=5/(6x-2) 3/(x-7)=2/(x-6) 2/(x+1)-3/(x-1)=6/(x^2-1)
(x+1)/(x-1)-4/(x^2-1)=1 2x/(2x-1)+x/(x-2)=2 2/(5+x)-1/(1+x)=5
6/(3x-8)=(4x-7)/(8-3x)+9 1/(x+1)-5/(2x+2)=7 (2x+9)/(x+3)-1/(x-3)-2/x=2
2/(x^2+x)+3/(x^2-x)-4/(x^2-1)=0 (5x+2)/(x^2+x)=3/(x+1) 2x/(2x-5)-2/(2x+5)=1 45/(x-5)=2*45/(x-5+10) 100000/(x+1000)=80000/x 3/x=2/(x-6）
5/x=64/x+18 82/a=74/x+9 98/x=490/(x+3)
100/(20+x)=200/(50+x) 45/x=410/(x+8) 948-45/x=97/3x
1/2x=2/(x+3) x/(x+1)=2x/(3x+3)+1 2/(x-1)=4/(x^2-1)
5/(x^2+x)-1/(x^2-x)=0 (x-3)/(x+4)=(x+9)/(x-7) x/(x-1)=3/(2x-2)-2
2/(2x-1)=4/(4x^2-1) x/(x-4)=(x+1)/(x-1) (2x+1)/(x^2+x)=5/(6x+6)
3/2-1/(3x-1)=5/(6x-2) 3/(x-7)=2/(x-6) 2/(x+1)-3/(x-1)=6/(x^2-1)
(x+1)/(x-1)-4/(x^2-1)=1 2x/(2x-1)+x/(x-2)=2 2/(5+x)-1/(1+x)=5
6/(3x-8)=(4x-7)/(8-3x)+9 1/(x+1)-5/(2x+2)=7 (2x+9)/(x+3)-1/(x-3)-2/x=2
2/(x^2+x)+3/(x^2-x)-4/(x^2-1)=0 (5x+2)/(x^2+x)=3/(x+1) 2x/(2x-5)-2/(2x+5)=1