How do we check if a solution is extraneous? Use these equations as examples to help you explain:

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.