Set 1: Linear Equations (Beginner)

**Choice C is the best answer.** Solve step by step: x = 8

Explanation

Answer: C

PROBLEM

Solve for x: 3x - 3 = 21

✓ Correct

Detailed Explanation

Choice C is the best answer. Solve step by step: x = 8

Why others are wrong:

A: 7 is incorrect because it does not satisfy the equation.

B: 9 is incorrect because it does not satisfy the equation.

D: 16 is incorrect because it does not satisfy the equation.