Solve 3/5 k - 5 = 7/10 k by eliminating the fraction. Explain how you determine what to multiply each term by and all the steps to solving the equation.

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.