Videos and solutions to help Algebra I students learn how to rearrange formulas.

New York State Common Core Math Module 1, Algebra I, Lesson 19

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Common Core For Algebra I

Student Outcomes

Students learn to think of some of the letters in a formula as constants in order to define a relationship between two or more quantities, where one is in terms of another, for example holding V in V = IR as constant, and finding R in terms of I.

Lesson Summary

The properties and reasoning used to solve equations apply regardless of how many variables appear in an equation or formula. Rearranging formulas to solve for a specific variable can be useful when solving applied problems.

Exit Ticket

Given the formula x = (1+a)/(1-a)

a. Solve for x when a = 12.

b. Rearrange the formula to solve for a.

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