1) 1 ≤ 2х + 5
1 - 5 ≤ 2х
-4 ≤ 2х
х ≥ -2
2) 2х + 5 < 3
2х < 3 - 5
2х < -2
х < -1
-2 ≤ х < -1
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Answers & Comments
1) 1 ≤ 2х + 5
1 - 5 ≤ 2х
-4 ≤ 2х
х ≥ -2
2) 2х + 5 < 3
2х < 3 - 5
2х < -2
х < -1
-2 ≤ х < -1