Set 3: Systems Of Equations (Advanced)

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

Explanation

Answer: A

PROBLEM

Solve: 2x + y = 23, 3x + 2y = 40. Find x.

✓ Correct

Detailed Explanation

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

Why others are wrong:

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

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

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