Linear equations and inequalities | Algebra Basics | Khan Academy - Constructing equations from proportions to solve problems | Algebra Basics | Khan Academy

We're putting some nifty thinking to work as we use proportions to create equations which then tell us how much tip to leave for dinner. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/ratios-core-algebra/v/ratio-problem-with-basic-algebra-new-hd?utm_source=YT&utm_medium=Desc&utm_campaign=algebrabasics Missed the previous lesson? https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/ratios-core-algebra/v/proportions-2-exercise-examples?utm_source=YT&utm_medium=Desc&utm_campaign=algebrabasics Algebra basics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Macroeconomics channel: https://www.youtube.com/channel/UCBytY7pnP0GAHB3C8vDeXvg Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy