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Equations Involving a Variable Expression in the Denominator

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Lesson Plans and Worksheets for Algebra I
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More Lessons for Algebra I
Common Core For Algebra I

Examples, videos, and solutions to help Algebra I students learn how to interpret equations with a variable expression in the denominator.

New York State Common Core Math Algebra I, Module 1, Lesson 18

Worksheets for Algebra I, Module 1, Lesson 18 (pdf)

Student Outcomes

Students interpret equations like 1/x = 3 as two equations "1/x = 3" and "x ≠ 0" ” and “ ” joined by “and.” Students find the solution set for this new system of equations.

Exit Ticket

1. Rewrite the equation (x -2)/(x - 9) = 2 as a system of equations. Then, solve for x.

2. Write an equation that would have the restriction x ≠ -3.

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