☰ Contents · Algebra

Solving first-degree equations in one unknown

Lessons 9 · 1 lessons · Sh.A. Alimov, O.R. Xolmuhamedov, M.A. Mirzaahmedov. Algebra, Grade 7, revised and expanded 5th edition. O‘qituvchi NMIU, Tashkent, 2017
Answers are for parents and teachers.
1
Solve 8x - 5 = 3x + 20.
2
Solve 2(x + 3) = 5x - 9.
3
Solve x : 2 + x : 3 = 10.
4
Show that 3(x + 1) + 2 = 3x + 8 has no roots.
5
Show that every value of x is a root of 4(x - 2) = 4x - 8.