Question

x:2+x=42.Tim x

Answer 1

x.2+x=42

x.2+x.1=42

x.(2+1)=42

x.3=42

x=42:3

x=14

Vậy x = 14

Answer 2

x:2+x=42

x:2+x:1=42

x:(2+1)=42

x:3=42

x=42x3

x=126

Vậy x=126

Answer 3

x : 2 + x = 42

x . 1/2 + x = 42

x . ( 1/2 + 1 ) = 42

x . 3/2 = 42

x = 42 : 3/2

x = 28