Choice C is the correct answer. Multiply second by 2 and add to first.

Step 1: Multiply second by 2: $6x + 4y = 34$

Step 2: Add to first: $(6x - 4y) + (6x + 4y) = 14 + 34$$12x = 48$$x = 4$

• First: $6(3) - 4(4) = 18 - 16 = 2 \ eq 14$
• Second: $3(3) + 2(4) = 9 + 8 = 17$ ✓

💡 Strategic Tip: Multiplying by 2 creates $+4y$ to cancel $-4y$.

**Other choices fail.