Choice B is the correct answer. Multiply second by 3 to eliminate $y$.

Step 1: Multiply second by 3: $6x - 3y = 15$

Step 2: Add to first: $(5x + 3y) + (6x - 3y) = 28 + 15$$11x = 43$$x = \frac{43}{11}$

Non-integer. - First: $5(5) + 3(1) = 25 + 3 = 28$ ✓

• Second: $2(5) - 1 = 10 - 1 = 9 \ eq 5$

💡 Strategic Tip: Multiplying by 3 creates $-3y$ to cancel $+3y$.

**Other choices fail verification.