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5

Set 2: Linear Equations (Intermediate)

Explanation

Answer: C

PROBLEM

Solve for x: 3(x + 1) = 15

Solve for x: 3(x + 1) = 15

A.

5

B.

6

C.

4

✓ Correct
D.

2

Detailed Explanation

Choice C is the best answer. Solve step by step: x = 4

Why others are wrong:
A: 5 is incorrect because it does not satisfy the equation.
B: 6 is incorrect because it does not satisfy the equation.
D: 2 is incorrect because it does not satisfy the equation.
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