Question

Find x when y = 18, if y= 5 when x =4

Answer 1

For example.,
Lets say
y
=
x
+
1
is equation 1.
So here, when
x
=
4
,
y
=
5
.
Also,
y
=
1.25
x
, is equation 2
Here also, when
x
=
4
,
y
= 5 ,
But these equations give different results when
y
= 18
For equation 1,
18
=
x
+
1

So,
x
=
17
For equation 2,
18
=
1.25
x
18
1.25
=
x
So,
x
=
14.4