Môn Toán Lớp 6: 1, -8 : x = 4/5 2, 3/4x – 3/2 = -7/6 3, 3/4 : x -7/3 = -11/6

Trả Lời

1. @warlys09

   1.

   -8: x=4/5

   x=-8: 4/5

   x= -8. 5/4

   x= -10

   2.

   3/4 x -3/2=-7/6

   3/4 x = -7/6 +3/2

   3/4 x= -7/6 + 9/6

   3/4 x= 1/3

   x = 1/3 :3/4

   x= 1/3. 4/3

   x= 4/9

   3. 

   3/4 : x -7/3 = -11/6

   3/4 😡 =-11/6 + 7/3

   3/4 😡 = -11/6 + 14/6

   3/4 😡 = 3/6

   x =3/4 : 3/6

   x= 3/4 . 1/2

   x= 3/2

    

   Trả lời
2. a) -8 😡 =4/5

   ⇒ x = -8 :4/5

   ⇒ x = -10.

   b) 3/4x -3/2 = (-7)/6

   ⇒ 3/4x = (-7)/6 + 3/2

   ⇒ 3/4x = 1/3

   ⇒ x = 1/3: 3/4

   ⇒ x = 4/3.

   c) 3/4 😡 -7/3 = (-11)/6

   ⇒ 3/4 😡 = (-11)/6 +7/3

   ⇒ 3/4 😡 = 1/2

   ⇒ x = 3/4 :1/2

   ⇒ x = 3/2.

   $#nhatminhbuithien2010$

   Trả lời