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Type: Multiple-Choice
Category: Polynomials and Rational Expressions
Standards: HSA-REI.A.1
Author: nsharp1
Created: 7 months ago

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# Polynomials and Rational Expressions Question

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## Grade 9 Polynomials and Rational Expressions CCSS: HSA-REI.A.1

Is the solution to the equation correct? If not, identify which step contains an error and why this step is incorrect.

$5x - 7 = 8$

 Step 1: $5x-7+7$ $= \ \ 8$ Step 2: $5x$ $= \ \ 8$ Step 3: $\(5x)/5$ $= \ \ 8/5$ Step 4: $x$ $= \ \ 8/5$
1. It is correct.
2. Step 1 is incorrect because you should divide by 5 first.
3. Step 1 is incorrect because you have to add 7 to both sides.
4. Step 3 is incorrect because you only need to cancel the 5, not divide.
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