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Simplifying 9x2 + 9a + 2 = 0 Reorder the terms: 2 + 9a + 9x2 = 0 Solving 2 + 9a + 9x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + 9a + -2 + 9x2 = 0 + -2 Reorder the terms: 2 + -2 + 9a + 9x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9a + 9x2 = 0 + -2 9a + 9x2 = 0 + -2 Combine like terms: 0 + -2 = -2 9a + 9x2 = -2 Add '-9x2' to each side of the equation. 9a + 9x2 + -9x2 = -2 + -9x2 Combine like terms: 9x2 + -9x2 = 0 9a + 0 = -2 + -9x2 9a = -2 + -9x2 Divide each side by '9'. a = -0.2222222222 + -1x2 Simplifying a = -0.2222222222 + -1x2
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