Praxis Core Practice Question

Mometrix’s Praxis Core Question of the Day

Mathematics

The sum of 14 and twice a number is 8. What is the number?

a. 3

b. – 4

c. – 6

d. – 3

Praxis FlashcardsPraxis Study Guide

Answer

D: Let x be the number in question. From the problem description, write the equation 14 + 2x = 8. Isolating the variable on one side of the equal sign yields 2x = 8 -14 = -6 . Solving this equation for x yields x = -6/2 = -3.

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Jay Willis

Jay Willis joined Mometrix as Vice President of Sales in 2009, and has developed several key strategic relationships that have enhanced the distribution of Mometrix products. With nearly 20 years of sales experience in the publishing industry, his dedication to providing the highest quality experience for customers, coupled with his sales and marketing expertise, has resulted in significant growth of the Institutional Sales division.

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