设y1=5分之1x+2,y2=(2x+1)/3,当x为何值时,y1与y2相等?现在!只能在今晚,

Question

设y1=5分之1x+2,y2=(2x+1)/3,当x为何值时,y1与y2相等?现在!只能在今晚,

Answer 1

1/5x+2=(2x+1)/3
乘以15得 3x+30=5(2x+1)
3x+30=10x+5
10x-3x=30-5
7x=25
x=25/7
当x=25/7时,y1=y2