NCERT Solutions for Class 7 Mathematics Chapter 12
Important NCERT Questions
Class vii Math Chapter 12 Algebraic Expressions Exercise 12.2
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 6
From the sum of 3x – y + 11 and – y – 11, subtract 3x – y – 11.
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From the sum of
(3x – y + 11) + (– y – 11) – (3x – y – 11) = 3x – y +11-y-11-3x+y+11
= 3x – 3x – y – y – y + 11 + 11 – 11
= (3-3)x – (1+111) y 111111
= 0x – y + 11 = -y+11
Class 7 Maths Chapter 12 Exercise 12.2
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