The first thing you should do in this case is to write the expression correctly: - (1/9) y + (1/3) Now, we take out common factor (1/9) obtaining: 1/9 (-y + 3) Let's check: 1/9 (-y + 3) -1/9y + 3/9 -1/9y + 1/3 OK Answer: An expression equivalent is: 1/9 (-y + 3)
