☰ Contents · Algebra

Basic properties of numerical inequalities

Lessons 13 · 1 lessons · Sh.A. Alimov, A.R. Xalmukhamedov, M.A. Mirzaakhmedov. Algebra: textbook for Grade 8 of general secondary schools. Revised 4th edition. Tashkent: “O‘qituvchi”, 2019
Answers are for parents and teachers.
1
From x + 4 < 9 write a condition on x.
2
From -5a < 20 find a.
3
If a > b, compare 3 - a and 3 - b.
4
From x/(-2) ≥ 3 find x.
5
Multiply both sides of 2 < 5 by -1 and check the result.