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12-04-2018
Mathematics

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8x²-x+x²+4x-9x²=18

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12-04-2018

8x² - x + x² + 4x - 9x² = 18

3x = 18 | 8x² + x² - 9x² = 0

x = 6 | divide by 3

Answer: x = 6

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