a) 486 :x - 126:x = 6 b) 725 : x + 175 : x = 5
(486 - 126 ) :x = 6 (725 -175 ) : x = 5
360 : x = 6 550 : x = 5
x = 360 : 6 x = 550 : 5
x = 60 x = 110
vậy x = 60 vậy x =110
Nhớ nha ?
a)
486 : x - 126 :x = 6
( 486 - 126 ) : x = 6
360 : x = 6
x = 360 : 6
x = 60
vậy x = 60
b)
725 : x + 175 : x = 5
( 725 + 175 ) : x = 5
900 : x = 5
x = 900 :5
x = 180
vậy x = 180