7
Answer: CSet 1: Linear Equations (Advanced)
Explanation
PROBLEM
Solve for x: x/3 + 1 = 8
Solve for x: x/3 + 1 = 8
A.
20
B.
42
C.✓ Correct
21
D.
19
Detailed Explanation
Choice C is the best answer. Solve step by step: x = 21
Why others are wrong:
A: 20 is incorrect because it does not satisfy the equation.
B: 42 is incorrect because it does not satisfy the equation.
D: 19 is incorrect because it does not satisfy the equation.