Question

Solve (x + 2 < 5) U (x - 7 > -6).


{x | -6 < x < 5}
{x | x < 3 or x > 1}
Ø

i got B

Answer 1

It is b.
(x + 2 < 5) U (x - 7 > -6)
subtract the two from the first side and add the 7 on the other side and you get:
(x < 3) U (x > 1)
so
{x | x < 3 or x > 1}
so yeah, b is correct.
Are you doing online homeschooling? I think I've had this math problem before in my previous unit. :)