Let us first write down the given equation. 80 = 3y + 2y + 4 + 1 80 = 5y + 5 80 - 5 = 5y 75 = 5y Just reversing both sides we get 5y = 75 Now dividing both sides by 5 we get y = 15 So the value of y is 15.
I hope the procedure for solving the problem is clear to
you. In future you can solve such problems with ease following the procedure
described.