Question

x+y=12 x.y=4 determine o valor de X e y​

Answer 1

x + y = 12

x + ( 4 / x ) = 12

x + 4 = 12 . x

4 = 12x - x

4 = 11x

11x = 4

x = 4 / 11

x = 0,36

x . y = 4

y = 4 / x

y = 4 / 4 / 11

y = 4 × 11 / 4

y = 44 / 4

y = 11