12x + 2y = 3......(i)(multiply by 2)32x - 2y = 1......(ii)(multiply by 2)x + 4y = 6......(iii)3x - 4y = 2.....(iv) add (iii) and (iv)4x = 8, x = 84 = 2substitute x = 2 into equation (iii)x + 4y = 62 + 4y = 64y = 6 - 24y = 4y = 44= 1(x + y)2 + 1 = 3