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Algebra variable population

Teaching Transcript

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When 'C' equals 3, what does 2 'C' plus 8 equal?

2 'C' is short form for 2 times 'C' so we can substitute and have 2 times 3

2 times 3 is 6, so our term becomes 6 plus 8

6 plus 8 equals 14, which is our answer

This math skill involves substituting a given value for a variable in an algebraic expression and simplifying the expression to find the result. It teaches how to perform operations after substituting to get the final answer.

Skill Practice

Algebra variable population

Test your understanding of algebra variable population by practicing it! Work through the below exercises to use it in practice.