Choice C is the correct answer. Multiply first by 2 and second by 5 to eliminate $y$.

Step 1: Multiply: $6x - 10y = -2$$20x + 10y = 90$

Step 2: Add: $26x = 88$$x = \frac{88}{26} = \frac{44}{13}$

Non-integer. - First: $3(2) - 5(\frac{7}{5}) = 6 - 7 = -1$ ✓

• Second: $4(2) + 2(\frac{7}{5}) = 8 + \frac{14}{5} = \frac{54}{5} \ eq 18$

💡 Strategic Tip: LCM of 5 and 2 is 10.

**Other choices fail.