Set 5: Systems Of Equations (Intermediate)

**Choice D is the best answer.** Using elimination or substitution: y = 5

Explanation

Answer: D

PROBLEM

Solve: x + y = 14, x + 5y = 34. Find y.

✓ Correct

Detailed Explanation

Choice D is the best answer. Using elimination or substitution: y = 5

Why others are wrong:

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

B: 6 is incorrect because it does not satisfy the equation.

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