Question

tìm x

[(6x-12):2-18]x 3=18

Answer 1

[(6x-12):2-18]x3=18

 (6x-12):2-18   =18:3=6

 (6x-12):2        =6+18=24

  6x-12            =24x2=48

  6x                 =48+12=60

 Vậy x = 0

  

Answer 2

(6x-12):2-18=18 : 3

(6x-12):2-18= 6
(6x-12):2=6 +18

(6x-12):2=24

6x-12=24 . 2

6x-12=48

6x=48+12

6x = 60

x = 60 :6

x = 10

Answer 3

[(6x-12):2-18]x3=18

(6x-12):2-18=18:3=6

(6x-12):2=6+18=24

6x-12=24x2=48

6x=48+12=60

x=60:6

x=10