解方程18X+2/3X*8=2870 x-(1/4x+7)-[2/5(x-1/4x-7)+2]=5/18x
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
x+1分之x+2减去x+3分之x+4=x+5分之x+6减去X+7分之x+8 (解方程)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
方程(x-1/x-2)-(x-3/x-4)=(x-2/x-3)-(x-4/x-5)解为x=7/2,(1/x-7)-(1/
方程 3x(7-2x)+5x(2x-1)=4x(x-3)+56
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)
解方程:x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)