Respuesta :

Answer:

x in (-oo:+oo)

2/5 = x/15 // - x/15

2/5-(x/15) = 0

2/5-1/15*x = 0 // - 2/5

-1/15*x = -2/5 // : -1/15

x = -2/5/(-1/15)

x = 6

x = 6

(Have a great rest of your day :)
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