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प्रश्न
7 (x - 2) = 2 (2x - 4)
उत्तर
7 (x - 2) = 2 (2x - 4)
⇒ 7x - 14 = 4x - 8
⇒ 7x - 4x = - 8 + 14
⇒ 3x = 6
⇒ x = `6/3 = 2`
∴ x = 2
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