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X + 3x + 14 = 62 4x + 14 - [14] = 62 - [14] 4x = [48] 4x / 4 = [48] / 4 x = 12.

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X + 3x + 14 = 62

4x + 14 - [14] = 62 - [14]

4x = [48]

4x / 4 = [48] / 4

x = 12.