设y1=0.5x-1,y2=0.3x+0.2,当x=____时,y1=y2
问题描述:
设y1=0.5x-1,y2=0.3x+0.2,当x=____时,y1=y2
答
y1=y2
0.5X-1=0.3X+0.2
0.2X=1.2
X=6