Respuesta :

x in (-oo:+oo)

x/(-4) = -10 // + 10

x/(-4)+10 = 0

10-1/4*x = 0 // - 10

-1/4*x = -10 // : -1/4

x = -10/(-1/4)

x = 40

x = 40

Hope this helps!

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