y1=1/2x+3 y2=-3x+11.当X为何值时,y1与y2互为相反数?2.当X取何值时,y1比y2小2?

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y1=1/2x+3y2=-3x+11.当X为何值时,y1与y2互为相反数?2.当X取何值时,y1比y2小2?y1=1/2x+3y2=-3x+11.当X为何值时,y1与y2互为相反数?2.当X取何值时,

y1=1/2x+3 y2=-3x+11.当X为何值时,y1与y2互为相反数?2.当X取何值时,y1比y2小2?
y1=1/2x+3 y2=-3x+1
1.当X为何值时,y1与y2互为相反数?
2.当X取何值时,y1比y2小2?

y1=1/2x+3 y2=-3x+11.当X为何值时,y1与y2互为相反数?2.当X取何值时,y1比y2小2?
y1=1/2x+3 y2=-3x+1
1.当X为何值时,y1与y2互为相反数?
解:当1/2*X=-(-3X+1)则y1与y2互为相反数
X=6X-2
-5X=-2
X=2/5
2.当X取何值时,y1比y2小2?
当1/2*X=(-3X+1)-2则y1与y2小2
X=-6X-2
7X=-2
X=-2/7

1.x=8/5 2.x=-8/5