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Ex 10.2, 7 (v) - Chapter 10 Class 7 Algebraic Expressions
Last updated at July 4, 2023 by Teachoo
Ex 10.2
Ex 10.2, 1
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
Ex 10.2, 7 (iv)
Ex 10.2, 7 (v) Important You are here
Ex 10.2, 8 (i)
Ex 10.2, 8 (ii) Important
Ex 10.2, 9 Important
Ex 10.2, 10
Chapter 10 Class 7 Algebraic Expressions
Serial order wise
Transcript
Ex 10.2, 7 Simplify these expressions and find their values if x = 3, a = –1, b = -2 (v) 2a – 2b – 4 – 5 + a2a – 2b – 4 – 5 + a = a (2 + 1) − 2b + (−4 − 5) = a (3) − 2b − 9 = 3a − 2b − 9 Putting a = −1, b = −2 = 3 (−1) − 2 (−2) − 9 = −3 + 4 − 9 = 1 − 9 = −8
