3x+y=9 3.2+y=9 6+y=9 what is the x

Question

asked Jul 15, 2020 212k views

1 Answer

Renan Basso · Answer 1 · 2020-07-19T18:31:46+0000

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,

3x+y=9 ---------- (i)

3.2+y=9 -------- (ii)

6+y=9 ------------ (iii)

From (ii) we get,

y = 9-3.2 = 5.8

From (iii) we get,

y = 9-6 = 3

As we can see y have two values,

Suppose y= 5.8, then x will be
$3x+5.8=9 \Rightarrow x= (9-5.8)/(3) = 1.0667$

or if y is 3, then x will be
$3x+3=9 \Rightarrow x= (9-3)/(3) = 2$

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