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2 Tutorials that teach Substitution
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In this lesson you will learn how to use substitution to solve equations, functions or expressions. 

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Notes on "Substitution"

(0:00-1:05) Introduction to substitution

(1:06-2:37) Beginners substitution example

(2:38-5:21) Function notation and substitution

(5:22-9:23) Example: word problem