Answer: y = 8
Step-by-step explanation: To solve for y, we must first isolate the term containing y which in this problem is 2y.
Since 3 is being added to 2y, we subtract 3 from
both sides of the equation to isolate the 2y.
On the left, the +3 and -3 cancel
out and on the right, 19 - 3 is 16.
So we have 2y = 16.
Now we can finish things off by just dividing
both sides of the equation by 2.
On the left the 2's cancel and on
the right, 16 divided by 2 is 8.
So y = 8.