Respuesta :

-2+b<3
⇒ b< 3-(-2)
⇒ b< 3+2
⇒ b<5

The final answer is b<5.

Hope this helps~
-2+b<3 => b< 3+2 => b<5 
( b=(∞,5) if she needs that)
Good luck with homework! ^-^