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Problem 5 - Entrance Test

If 3(x - 4) + 2(x + 5) = 4x + 7, find x. / यदि 3(x - 4) + 2(x + 5) = 4x + 7, तो x ज्ञात कीजिए।

Correct: B

Expand: 3x - 12 + 2x + 10 = 4x + 7 → 5x - 2 = 4x + 7 → x = 9