Chapter 2 - Functions - 2.5 Preview of Composite and Inverse Functions - Exercises and Problems for Section 2.5 - Skill Refresher - Page 101: S8

$x$

Work Step by Step

Use the distributive property of polynomials to simplify $5(\frac{1}{5}x-1)=5(\frac{1}{5})(x)-5(1)=x-5$. Thus, the expression becomes $$5(\frac{1}{5}x-1)+5=x-5+5=x$$

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