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If 3 less than twice a certain number is equal to 2 more

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by Brent@GMATPrepNow » Sun Mar 31, 2019 5:50 am
BTGmoderatorDC wrote:If 3 less than twice a certain number is equal to 2 more than 3 times the number, then 5 less than 5 times the number is

A. −30
B. −20
C. −5
E. 0
D. 20
Let x be the number

3 less than twice a certain number is equal to 2 more than 3 times the number
We can write: 2x - 3 = 3x + 2
So: -3 = x + 2
Solve: -5 = x

5 less than 5 times the number is
5 times the number = 5(-5) = -25
So, 5 less than 5 times the number = -25 - 5 = -30

Answer: A

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by Scott@TargetTestPrep » Sun Apr 07, 2019 5:09 pm
BTGmoderatorDC wrote:If 3 less than twice a certain number is equal to 2 more than 3 times the number, then 5 less than 5 times the number is

A. −30
B. −20
C. −5
E. 0
D. 20

OA A

Source: Princeton Review
We can create the equation:

2n - 3 = 2 + 3n

-5 = n

Thus, 5 less than 5 times the number is 5(-5) - 5 = -25 - 5 = -30.

Answer: A

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