Free Practice Question
PS · Problem Solving
sub-505
Absolute Values/Modules
If 12x + 18 = 0, then 12|x| equals which one of the following?
Answer Choices
Correct answer marked belowA
12
B
–18x
C
12x
18
Correct
E
18x
See the full step-by-step explanation
You can see the correct answer above. Sign in for free to unlock the complete worked solution.
Track your performance and improve
Get detailed analytics, unlock full explanations, and move up difficulty tiers as you practice.
Explanation
Preview
Official Explanation
Official
Given the equation: • 12x + 18 = 0 To find: • The value of 12|x| Approach and Working: • 12x + 18 = 0 o x…
Read the full explanation
Sign in for free to see the complete step-by-step solution to this question.
Comments
2
Sign in to join the discussion
D
DhanushFeb 12, 2025
how much time should this take to solve?
V
VighneshFeb 15, 2024
Can you explain more?
What this question tests
What it tests
Your ability to solve absolute-value equations and inequalities by considering both cases.
Common trap
Dropping the absolute value bars entirely or missing that |x| = k has two solutions when k > 0.
Related GMAT Topic Guides
Quant
TopicGMAT Quantitative Reasoning
All Quant guidesDetails
Difficulty
sub-505
Type
PS
Category