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Simplify Combining like Terms: 21b − 32 + 7b − 20b - Mathematics

Simplify combining like terms: 21b − 32 + 7b − 20b

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Solution

21b − 32 + 7− 20b = 21b + 7− 20b − 32

b (21 + 7 − 20) −32

= 8b − 32

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APPEARS IN

NCERT Class 7 Maths
Chapter 12 Algebraic Expressions
Exercise 12.2 | Q 1.1 | Page 239
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