1 Shift the decimals of both 20.55 and 1.5 to the right by 1 decimal place. (This is needed to convert 1.5 to 15, since long division must divide by a whole number.)
To get y by itself subtract 2x from both sides. The left side becomes 3y=12-2x. Then divide by 3 on both sides to get y by itself. Which you get y=4-(2/3)x