Is the equation true, false or open?

4y+8=6y+3

true; the expressions are the same for all values of the variables
false; the expressions are never the same.
open; there is a variable

Solve

4y+8=6y+3
minus 4y from both sides
8=2y+3
minus 3 fro mboth sides
5=2y
divide both sides by 2
2.5=y

well, it it actually open since there is a variable
it is true, but only for 1 value of y

answer is OPEN

What exactly is your question?