Question

Giá trị của y để y x 3/4 + y x 5/4 =3

Answer 1

y x 3/4 + y x 5/4 =3

y x ( 3/4 + 5/4 )  = 3

y  x      2            = 3

y                         = 3 : 2

y                        = 1,5   

Answer 2

`yxx(3/4+5/4)=3`

`yxx2=3`

`y=3:2=3/2`

Answer 3

1,5

Answer 4

y x 3/4 + y x 5/4 =3

y x ( 3/4 + 5/4 ) = 3

y x 2 = 3

y = 3 : 2 

y = 3/2

Answer 5

y x 3/4 + y = 3 : 5/4

y x 3/4 + y = 12/5
2y x 3/4 = 12/5
2y x  = 12/5 : 3/4
2y = 16/5
y = 16/5 : 2
y = 8/5
 

Answer 6

y x 3/4 + y x 5/4 = 3

y x ( 3/4 + 5/4 ) = 3

y x 2 = 3 

y              = 3 : 2

y               = 1,5