When will two phone companies have the same amount?

Question

Talk-n-Text Inc. offers the following monthly plan: $120 per moth for talking and Internet, and 5 cents per text. Gab and Go Inc. offers an alternative plan: $40 per month for talking and Internet and 15 cents per text. Determine when both plans total to the exact same amount, as well as what that amount is

Answer 1

after 800 texts each company's bill will be $160.