Tìm x: 3/4 – (x – 1/2)= 1và2/4

2 bình luận về “Tìm x: 3/4 – (x – 1/2)= 1và2/4”

1. 3/4-(x-1/2)=1 2/4=(1xx4+2)/4=6/4

   =>x-1/2=3/4-6/4=(-3)/4

   =>x=(-3)/4+1/2=(-3)/4+2/4=(-1)/4

    

   Trả lời
2. 3/4 – (x – 1/2) = 1 2/4

   3/4 – (x – 1/2) = 3/2

   x – 1/2 = 3/4 – 3/2

   x – 1/2 = -3/4

   x = (-3/4) + 1/2

   x = -1/4

    

   Trả lời