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प्रश्न
Simplify combining like terms: 21b − 32 + 7b − 20b
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उत्तर
21b − 32 + 7b − 20b = 21b + 7b − 20b − 32
= b (21 + 7 − 20) −32
= 8b − 32
संबंधित प्रश्न
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