Nai'a drives from her home to the North Shore in 2 hours. After surfing for 3 hours, she returns home at a rate of 20 mph less than her rate going. If Nai'a is gone a total of 8 hours, how fast did she drive each way?

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!