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Shortcut used: Translate the question into an equation, solve carefully, and check the result.
Solve in 3 steps:
- Let the unknown be a variable.
- Translate the statement into an equation.
- Solve and verify in options.
Common mistake: Do not change signs while moving terms across the equation.
Question 2
Multiple Choice Question
Question
If 5(x - 2) = 3x + 8, what is x?
Explanation
Correct Answer: B
ANSWER
Correct Answer: B
Method / Topic: Algebra
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
Why this answer is correct
The answer satisfies the equation formed from the question.
Short Explanation
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
Detailed Explanation
Question
If 5(x - 2) = 3x + 8, what is x?
ANSWER
Correct Answer: B
Method / Topic: Algebra
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
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Question 2
Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Learn + solve
Shortcut used, common trap, and the fastest solving route
Shortcut used: Translate the question into an equation, solve carefully, and check the result.
Solve in 3 steps:
- Let the unknown be a variable.
- Translate the statement into an equation.
- Solve and verify in options.
Common mistake: Do not change signs while moving terms across the equation.
Question
If 5(x - 2) = 3x + 8, what is x?
Explanation
Correct Answer: B
ANSWER
Correct Answer: B
Method / Topic: Algebra
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
Why this answer is correct
The answer satisfies the equation formed from the question.
Short Explanation
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
Detailed Explanation
Question
If 5(x - 2) = 3x + 8, what is x?
ANSWER
Correct Answer: B
Method / Topic: Algebra
Expand: 5x - 10 = 3x + 8. Then 2x = 18, so x = 9.
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Concept tagged
Translate the question into an equation
solve carefully
and check the result.