Solving an absolute magnitude question from AMC8

AMC8 2017 Q21 Absolute Values


21

Welcome to my solutions video to the American Mathematics Competition 8 - AMC 8, this one is question 21 from the 2017 paper. For this you need to understand the absolute value function and some rules about products of positives and negatives.

The AMC is a great way to test your math skill and knowledge, but practice for most students is advised!

Watch this video series to find worked solutions, extra tips, extension problems and othexr observations. Please like and comment, and of course subscribe as I will be uploading a new video solution each week. Check out my playlists for previous exams and maths challenge solutions.

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