1

Set 5: Linear Equations (Beginner)

Explanation

Answer: D

PROBLEM

Solve for x: 4x + 3 = 39

Solve for x: 4x + 3 = 39

A.

7

B.

11

C.

8

D.

9

✓ Correct

Detailed Explanation

Choice D is the best answer. Solve step by step: x = 9

Why others are wrong:
A: 7 is incorrect because it does not satisfy the equation.
B: 11 is incorrect because it does not satisfy the equation.
C: 8 is incorrect because it does not satisfy the equation.