Set 4: Systems Of Equations (Intermediate)

**Choice B is the best answer.** Using elimination or substitution: x = 2

Explanation

Answer: B

PROBLEM

Solve: x + y = 5, 3x + 2y = 12. Find x.

✓ Correct

Detailed Explanation

Choice B is the best answer. Using elimination or substitution: x = 2

Why others are wrong:

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

C: 1 is incorrect because it does not satisfy the equation.

D: 3 is incorrect because it does not satisfy the equation.