Answer:
\(2x-3=21\) when x=12.
Step-by-step explanation:
Given : If \(x=\frac{2}{3}y\) and \(y=18\)
To find : The value of \(2x-3\)?
Solution :
The expression given as \(x=\frac{2}{3}y\)
Substitute the value of \(y=18\)
\(x=\frac{2}{3}\times (18)\)
\(x=2\times6\)
\(x=12\)
So, The value of x is 12.
Substitute x in \(2x-3\),
\(=2(12)-3\)
\(=24-3\)
\(=21\)
Therefore, \(2x-3=21\) when x=12.
