1.Simplify combining like terms: (i) 21b–32+7b–20b

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1.Simplify combining like terms: (i) 21b–32+7b–20b 1.Simplify combining like terms: (i) 21b–32+7b–20b October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

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