Respuesta :

Step-by-step explanation:

[tex]a + b > 12 \\ [/tex]

but

[tex] \\ a > - 3 \\ [/tex]

if

[tex]a = - 3 \\ then \: \\ a + b > 12 \\ - 3 + b > 12 \\ b > 12 + 3 \\ b > 15[/tex]

Answer:

its -3

Step-by-step explanation: