We can start by taking a look at the first equation. We can move -5y to the other side with 16, to get x = 5y + 16.
Multiply both each term by 4 in this equation to get this:
4x = 20y + 64
Keep this aside for now; you will need it later.
Now, look at the second equation. Move -2y to the other side of the equation so that it is with -8. The equation will now look like this:
4x = 2y - 8
Now, go back to the first equation where we just multiplied by 4; take 20y + 64 and set it equal to 2y - 8. It should look like this:
20y + 64 = 2y - 8
Simplify:
18y = -72
y = -4
Now that we found y, substitute -4 for y in one of the given equations (I chose the first one):
x = 20 + 16
x= 36
There you have it! I hope this helps!