Multiplying the 1^st equation by 2 and 2^nd equation by 15 and adding the two equation.

⇒ 22x + 30y + 46 + 105x – 30y – 300 = 0

⇒ 127x = 254

⇒ x = 2

Substituting value of x in eq1.

⇒ 22 + 15y + 23 = 0

⇒ 15y = -45

⇒ y = -3