Respuesta :

Answer:

The value of x if y is 5.8 is 1.0667 or if y is 3, then x is 2.

Solution:

As given in the problem,

[tex]3x+y=9[/tex] ---------- (i)

[tex]3.2+y=9[/tex]-------- (ii)

[tex]6+y=9[/tex]------------ (iii)

From (ii) we get,

[tex]y = 9-3.2 = 5.8[/tex]

From (iii) we get,

[tex]y = 9-6 = 3[/tex]

As we can see y have two values,

Suppose y= 5.8, then x will be [tex]3x+5.8=9 \Rightarrow x= \frac{9-5.8}{3} = 1.0667[/tex]

or if y is 3, then x will be [tex]3x+3=9 \Rightarrow x= \frac{9-3}{3} = 2[/tex]

Therefore, the value of x if y is 5.8 is 1.0667 or if y is 3, then x is 2.