e: =>x-1/3=-8/3:(-4)=-8/3x-1/4=2/3
=>x=2/3+1/3=1
f: =>x+2/3=4/60=1/15
=>x=1/15-2/3=1/15-10/15=-9/15=-3/5
g: x-4=-14/35:7/5=-2/5x5/7=-2/7
=>x=-2/7+4=26/7
Đúng 1
Bình luận (0)