Leon joined a bootcamp class at his gym that lasted two weeks. In each class, Leon does cardio for c minutes and strength training for 30 minutes. Leon went to the class 3 times the first week and 4 times the second week.

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!