The expression 29.99 + 0.05(x - 100) represents the cost of Ian's cell phone plan for a month when he talks x minutes. the expression 39.99 + 0.03(x - 200) represents the cost of Tom's cell phone plan for. a month when tom talks x minutes. How many minutes would Tom and Ian have to talk in order for their monthly bills to be equal; that is, what is the solution to the following equation. 29.99 + 0.05(x - 100) = 39.99 + 0.03(x -200)

29.99 + 0.05(x - 100) = 39.99 + 0.03(x -200)

29.99 + 0.05x - 5 = 39.99 + 0.03x - 6
I assume you can solve that for x