Question

(x + 4)2 + (y + 6)2 = 9

Answer 1

Respuesta:

$(x + 4)^{2} + (y + 6)^{2} = 9 \\ \sqrt{(x + 4)^{2} } + \sqrt{(y + 6)^{2} } = \sqrt{9} \\ x + 4 + y + 6 = 3 \\ x + y = 3 - 6 - 4 \\ x + y = 3 - 10 \\ x + y = - 7$