Question

4x + 9 = - 26 - x

2x + 3x =75

- x - 2x = - 50 + 65

Answer 1

4x+9=-26-x

4x+x=-26-9

   5x=-35

   x=(-35):5

   x=-7

Answer 2

4x+9=-26-x

4x+x=-26-9

  5x =-35

   x =(-35):5

   x =-7

Answer 3

4x + 9 = -26-x

4x+x=-26-9

5x=-35

x=-35:5

x=-7

Vậy : x=-7

 

 

2x+3x=75

5x=75

x=75:5

x=15

Vậy : x=15

 

 

-x-2x=-50+65

-3x=15

x=15:(-3)

x=-5

Vậy : x=-5

CHO TỚ 3 TÍCH NHA !