Set 4: Systems Of Equations (Beginner)

**Choice A is the best answer.** Using elimination or substitution: y = 4

Explanation

Answer: A

PROBLEM

Solve: 5x + 5y = 45, 2x + 5y = 30. Find y.

✓ Correct

Detailed Explanation

Choice A is the best answer. Using elimination or substitution: y = 4

Why others are wrong:

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

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

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

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