如果la-2l+lb-3l=0,则2a+b分之a+b=

如果la-1l=1,lb-2l=3,则a+b= 如果la-2l+lb-3l=0,则2a+b分之a+b= 若la+2l+lb+3l=0,则3a+2b= la+3l+lb-2l+c+1l=0求a+b+c 若la-5l+lb+6l=0,求-b-a-(-2/3)的值 la+3l+lb-2l=0,求a的b次幂 已知la-3l+lb-5l=0,求5a-2b的值? 如果有理数a.b.c满足la-1l+lb+3l+l3c-1l=0,(abc)^125/(a^9b^3c^2)的值. 已知la-2l+lb-3l+lc-4l=0,求a+2b+3c的值 已知la-2l+lb+3l+lc-4l=0,求a+2lbl+3c的值? la-1/2l+lb-1/3l+lc-1/4l=0那么a+b-c=? la-1/2l+lb-1/3l+lc-1/4l=0,求a+b+c的值. la-2l+lb-3l+lc-4l=0,求式子a+b+c的值. 已知la-2l+lb-5l=0,求a和b的值. la-1l+lb-2l=0,求a+b的值 若la-1/2l+lb+2l=0,则b-a-7/2的值是 若lml=负m 则m等于若la+2l+lb-3l=0 则a+b=? 若la—1/2l+lb+2l=0,则b—a—3又1/2的值是