Question

X + y = 10
10 (x - 2) + 2y = 10y + x

Answer 1

Respuesta:

x + y = 10

10 (x - 2) + 2y = 10y + x

x = 10 - y

10 ((10 - y) - 2) + 2y = 10y + (10 - y)

x = 10 - y

10 (8 - y) + 2y = 9y - 10

x = 10 - y

80 - 8y = 9y - 10

x = 10 - y

- 17y = - 90

x = 10 - 5.29

y = - 90 / - 17 = 5.29

x = 4.71

y = 5.29

Espero no haberme equivocado. :)