Set 3: Systems Of Equations (Beginner)

**Choice C is the best answer.** Using elimination or substitution: y = 3

Explanation

Answer: C

PROBLEM

Solve: 2x + 5y = 31, x + 3y = 17. Find y.

✓ Correct

Detailed Explanation

Choice C is the best answer. Using elimination or substitution: y = 3

Why others are wrong:

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

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

D: 2 is incorrect because it does not satisfy the equation.

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