6
Answer: CSet 4: Linear Equations (Intermediate)
Explanation
Solve for x: 3x + 7 = 22
Solve for x: 5 - 2(x - 1) = 9
What is the value of x?
A.
15
B.
7
C.✓ Correct
5
D.
3
Detailed Explanation
Choice C is correct. Subtract 7 from both sides: 3 x = 15. Then divide both sides by 3: x = 5.
Key Steps:
•
The correct answer is 5
Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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