you have quite a bit of work to do to master this....
When dealing with a fraction, multiply both sides of the equality by the denominator,
just as in
Hence, the 1st step is
You want t by itself, but it's in two places here,
not only that but it's on opposite sides.
Hence you next bring the 2 t's to the same side, as in 3x=x+10, 3x-x=x-x+10, 2x=10
Before we bring the t's together, we need to multiply out the right hand side.
therefore, we have
We get the t's on the same side by adding yt to both sides as we will then have no t's on the right
Now we factorise the left to have t only once
this is now the same as divide both sides by 3...
hence divide both sides by (2p+y)