Ex 10.2, 7 (iii) - Chapter 10 Class 7 Algebraic Expressions
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
Ex 10.2, 7 Simplify these expressions and find their values if x = 3, a = –1, b = -2 (iii) 3a + 5 – 8a + 1 3a + 5 − 8a + 1 = a (3 − 8) + (5 + 1) = a (−5) + 6 = −5a + 6 Putting a = −1 = −5 (−1) + 6 = 5 + 6 = 11
Ex 10.2
Ex 10.2, 2 Important
Ex 10.2, 3
Ex 10.2, 4
Ex 10.2, 5 Important
Ex 10.2, 6 (i)
Ex 10.2, 6 (ii) Important
Ex 10.2, 6 (iii)
Ex 10.2, 6 (iv) Important
Ex 10.2, 7 (i) Important
Ex 10.2, 7 (ii)
Ex 10.2, 7 (iii) Important You are here
Ex 10.2, 7 (iv)
Ex 10.2, 7 (v) Important
Ex 10.2, 8 (i)
Ex 10.2, 8 (ii) Important
Ex 10.2, 9 Important
Ex 10.2, 10
About the Author
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo