Anne sold 20 gallons of lemonade carol sold 10 fewer quarts how many quarts did carol sell

If Anne sold 20, and Carol sold 10 less, 20 - 10 = 10, so Carol sold 10.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!