NCERT Solutions for Class 7 Mathematics Chapter 12
Important NCERT Questions
Class vii Math Chapter 12 Algebraic Expressions Exercise 12.3
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 6
Simplify the expressions and find the value if x is equal to 2: x+7+4(x-5)
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x+7+4(x-5) = x+7+4x-20 = x + 4x + 7 – 20
= 5x – 13 = 5 x 2 – 13 [Putting x = 2 ]
= 10 – 13 = -3
Class 7 Maths Chapter 12 Exercise 12.3
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