Ex 10.2, 7 (i) - Chapter 10 Class 7 Algebraic Expressions
Last updated at Dec. 16, 2024 by Teachoo
Ex 10.2
Ex 10.2, 1
You are here
You are here
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 (i) 3x – 5 – x + 9 3x – 5 – x + 9 = x (3 – 1) + (–5 + 9) = x (2) + 4 = 2x + 4 Putting 𝑥 = 3 = 2 (3) + 4 = 6 + 4 = 10
