720 : ( X x5 )= 6
X x 5 = 720 : 6
X x 5 =120
X = 120 : 5
X = 24
chúc bạn học tốt
720:(x.2+x.3)=2.3
=> 720:[x.(2+3)]=6
=> x.5 =720:6
=> x.5 =120
=> x =120:5
=> x =24
Vậy x=24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24
720:[Xx2+Xx3]=2x3
720:Xx5=6
Xx5=720:6=120
X=120:5=24