Question

Solve the inequality.

x+1>3
0 −4 < x < 2
Ox<-4 orx > 2
O-2 O x < -2 or x > 4

Answer 1

answer of the first one

x+1>3 equal to x>2 by subtracting 1 from each side

so x>2 equal ]2,infinity[

answer of the second

-4<x<2 so the quantity of x is all the numbers from -4 to 2 but when it be greater than or smaller than without saying or equal we put the brackets opened so the result is ]-4,2[

but i can,t understand 3 and 4