Question

How to solve y for this problem

Answer 1

You do $\frac{sin(y)}{2} = \frac{sin30}{what you got for x}$ and then cross multiply and simply it.

$(what you got for x)sin(y)=2sin30$
divide (what you got for x) to both side
you should get something like $sin(y)= \frac{2sin30}{what you got for x}$
then just use a calculator and do $sin^{-1} ( \frac{2sin30}{what you got for x} )$