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प्रश्न
Fill in the blank:
7x + 2z + 4y − 3 = − 3 + 4y + (.............)
रिकाम्या जागा भरा
उत्तर
7x + 2z + 4y − 3 = − 3 + 4y + (7x + 2z)
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Concept of Substitution
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