Set 3: Systems Of Equations (Beginner)

**Choice B is the best answer.** Using elimination or substitution: x = 6

Explanation

Answer: B

PROBLEM

Solve: 3x + 4y = 26, x + 3y = 12. Find x.

✓ Correct

Detailed Explanation

Choice B is the best answer. Using elimination or substitution: x = 6

Why others are wrong:

A: 4 is incorrect because it does not satisfy the equation.

C: 8 is incorrect because it does not satisfy the equation.

D: 5 is incorrect because it does not satisfy the equation.