Combine the like terms in the equation : 2s-4w+5+6s

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

With finding limits of multi variable !

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?