Question

tìm x 

X x 6 + X x 2 + x = 3024

x: 3 + x : 3/4 = 5

Answer 1

a) X x 6 + X x 2 + x =3024

=>X x (6+2+1)=3024

=>X x 9 = 3024

=>X=336

b) x:3 + x:3/4 = 5

=>X x 1/3 + X x 4/3 = 5

=>X x (1/3 + 4/3) = 5

=> X x 5/3 = 5

=> X=5: 5/3

=>x=3

Answer 2

1)  X x 6 + X x 2 + X = 3024

X x ( 6 + 2 + 1 ) =3024

X x 9 =3024

X=336

2)   x : 3 + x : 3/4 = 5 

 x  .  1/3  + x . 3/4 =5

x.(1/3+3/4)=5

5/3x=5

x=3

Answer 3

X x 6 + X x 2 + x = 3024

=> X x (6+2+1)=3024

=> X x 9 =3024

=> X=3024:9

=> X=336

x: 3 + x : 3/4 = 5

=>X x 1/3+X.4/3=5

=>X x(1/3+4/3)=5

=>X x 5/3 =5

=>X=5:5/3=5.3/5

=>X=3