Question 353614
3x/4 = 9/2

look, here u dont need to multiply right? u just need to find out the value of x.

its very simple

3x/4 = 9/2
u already know that 4/2 gives u 2. (denominator) 
now u just have to find that 3 divided by what gives you 9.
so just brinf 3x to the other side and divide it by 9.
3/9 =3
therefore, x= 3

numerical simplification

3x/4 = 9/2
x = 9/3
x= 3

hope you understood.