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3x - 4x² + 12x - 9 = ⁷/₉ - 4x² - 2x + 12x + 6
5x = 15⁷/₉
x = ¹⁴²/₄₅ = 3 ⁷/₄₅
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3x - 4x² + 12x - 9 = ⁷/₉ - 4x² - 2x + 12x + 6
5x = 15⁷/₉
x = ¹⁴²/₄₅ = 3 ⁷/₄₅