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