The sum of 8 and twice a number is equal to three times the number. What is the number?
A) -8
B) 8
C) -9
D) -7
E) 7

Name: The sum of 8 and twice a number is equal to three times the number. What is the number? A) -8 B) 8 C) -9 D) -7 E) 7
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Question

Quizplus · Accepted Answer

Let's represent the number with "x".
According to the problem statement,
8 + 2x = 3x
Subtracting 2x from both sides, 
8 = x
Therefore, the number is 8, which is option B.

The Sum of 8 and Twice a Number Is Equal