Question

Tìm x biết : (37-x ) : ( x + 13 ) = 3/7 

Answer 1

 (37-x ) : ( x + 13 ) = 3/7 

=> 37-x = 3/7 . [x+13]

=> 37-x = 3/7 .x +39/7

=> 37 = 10/7 . x +39/7

=> 10/7 . x = 220/7 => x = 22

Answer 2

(37-x ) : ( x + 13 ) = 3/7 

=> 37-x = 3/7 . [x+13]

=> 37-x = 3/7 .x +39/7

=> 37 = 10/7 . x +39/7

=> 10/7 . x = 220/7 => x = 22

Answer 3

ko hiểu'

Answer 4

x=22 cu yen tam