☰ Contents · Algebra

Combining like terms

Lessons 17 · 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
Simplify x² + 5x - 2x² + x - 9.
2
Simplify 2m - 3n + 5m + n and find its value for m = 3, n = -1.
3
Bring 3x · y · 2x - 6x²y + xy to standard form.
4
Are 5ab and 5ba like terms? Explain.
5
A school bought 12 boxes and then another 18 boxes of pencils, x pencils in each, and later gave 5 boxes to another school. Write the remaining number of pencils as 12x + 18x - 5x, simplify it and compute it for x = 10.