(1).已知y1=-2/3x+1,y2=1/6x-5,若y1+y2=0,则x=( )

问题描述:

(1).已知y1=-2/3x+1,y2=1/6x-5,若y1+y2=0,则x=( )

-2/3x+1+1/6x-5=0
-3/6x=4
x=-8