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Solve this faster with the right shortcut first
Shortcut used: Define the variable, form the equation, then solve step by step.
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 7
Multiple Choice Question
Question
If 5x - 7 = 38, find x.
Explanation
Correct Answer: C
ANSWER
Correct Answer: C
Method / Topic: Algebra
The value of x is 9.
Why this answer is correct
The answer satisfies the equation formed from the question.
Short Explanation
The value of x is 9.
Detailed Explanation
Question
If 5x - 7 = 38, find x.
ANSWER
Correct Answer: C
Method / Topic: Algebra
Add 7 to both sides: 5x=45. Divide by 5: x=9.
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Question 7
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: Define the variable, form the equation, then solve step by step.
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 5x - 7 = 38, find x.
Explanation
Correct Answer: C
ANSWER
Correct Answer: C
Method / Topic: Algebra
The value of x is 9.
Why this answer is correct
The answer satisfies the equation formed from the question.
Short Explanation
The value of x is 9.
Detailed Explanation
Question
If 5x - 7 = 38, find x.
ANSWER
Correct Answer: C
Method / Topic: Algebra
Add 7 to both sides: 5x=45. Divide by 5: x=9.
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