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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: x – 1/2 = 3/4 b) -2 /3 + x = -1/2 c) 5/3 – 1/3.( x-1/4)=1/3

Toán Lớp 6: x – 1/2 = 3/4
b) -2 /3 + x = -1/2
c) 5/3 – 1/3.( x-1/4)=1/3

Comments ( 2 )

  1. a) x- 1/2 =3/4
       x=3/4 + 1/2
       x=3/4 +2/4
       x=5/4
    b) -2/3  +x  =-1/2
                   x =-1/2 +2/3
                   x= -3/6  + 4/6
                   x=1/6
    c)5/3 – 1/3.(x – 1/4) =1/3
                1/3(x-1/4)=5/3-1/3
                1/3(x-1/4)= 4/3
                      x-1/4=4/3 : 1/3
                      x – 1/4 =4
                      x=4+1/4
                      x= 16/4 +1/4
                      x=17/4
    @Chúc bạn học tốt!

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222-9+11+12:2*14+14 = ? ( )