Algebra is when you get the variable (which is the letter in that equation by itself) by itself. So to do that you have to divide 1.6 on both sides because right now you have 1.6y which means 1.6 multiply y and if you divide by 1.6 then the 1.6 cancels out and then the y is left by itself. the answer is y=5.625
1.6y 9
----- = ----- y=5.625
1.6 1.6