已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数; (2)当x为何值时,y1比y2小5;
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![已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数; (2)当x为何值时,y1比y2小5;](/uploads/image/z/11590185-57-5.jpg?t=%E5%B7%B2%E7%9F%A5y1%3D3x-5%2Cy2%3D10-5x.%E5%BD%93x%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2Cy1%E4%B8%8Ey2%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%EF%BC%9B+%EF%BC%882%EF%BC%89%E5%BD%93x%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2Cy1%E6%AF%94y2%E5%B0%8F5%EF%BC%9B)
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已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数; (2)当x为何值时,y1比y2小5;
已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数; (2)当x为何值时,y1比y2小5;
已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数; (2)当x为何值时,y1比y2小5;
已知y1=3x-5,y2=10-5x.当x为何值时,y1与y2互为相反数 x=-2.5
2)当x为何值时,y1比y2小5;xi小于1.25