3

Set 3: Linear Equations (Intermediate)

Explanation

Answer: C

PROBLEM

Solve for x: 5x - 3 = 1x + 9

Solve for x: 5x - 3 = 1x + 9

A.

2

B.

1

C.

3

✓ Correct
D.

6

Detailed Explanation

Choice C is the best answer. Solve step by step: x = 3

Why others are wrong:
A: 2 is incorrect because it does not satisfy the equation.
B: 1 is incorrect because it does not satisfy the equation.
D: 6 is incorrect because it does not satisfy the equation.