设y1=1/5x+1,y2=2x+1/4 ,当x值为何值时,y1,y2互为相反数?

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设y1=1/5x+1,y2=2x+1/4 ,当x值为何值时,y1,y2互为相反数?
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设y1=1/5x+1,y2=2x+1/4 ,当x值为何值时,y1,y2互为相反数?
设y1=1/5x+1,y2=2x+1/4 ,当x值为何值时,y1,y2互为相反数?

设y1=1/5x+1,y2=2x+1/4 ,当x值为何值时,y1,y2互为相反数?
-25/44
当他们是相反数的时候,你把那两个数相加为0.再解方程就好了,