Simplify the expression 6a − 9a.

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Prepare for the Praxis Elementary Education: Three Subject Bundle – Mathematics (5903) Exam. Utilize flashcards and questions with explanations to ace your test! Enhance your mathematics skills for better results.

Multiple Choice

Simplify the expression 6a − 9a.

Explanation:
When you simplify 6a − 9a, you’re combining like terms, since both terms have the same variable a. Subtract the coefficients: 6 − 9 equals −3, and attach the common factor a to get −3a. You can also see this by factoring: a(6 − 9) = a(−3) = −3a. The result is −3a.

When you simplify 6a − 9a, you’re combining like terms, since both terms have the same variable a. Subtract the coefficients: 6 − 9 equals −3, and attach the common factor a to get −3a. You can also see this by factoring: a(6 − 9) = a(−3) = −3a. The result is −3a.

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