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Simplifying x2 + 11a + 18 = 0 Reorder the terms: 18 + 11a + x2 = 0 Solving 18 + 11a + x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + 11a + -18 + x2 = 0 + -18 Reorder the terms: 18 + -18 + 11a + x2 = 0 + -18 Combine like terms: 18 + -18 = 0 0 + 11a + x2 = 0 + -18 11a + x2 = 0 + -18 Combine like terms: 0 + -18 = -18 11a + x2 = -18 Add '-1x2' to each side of the equation. 11a + x2 + -1x2 = -18 + -1x2 Combine like terms: x2 + -1x2 = 0 11a + 0 = -18 + -1x2 11a = -18 + -1x2 Divide each side by '11'. a = -1.636363636 + -0.09090909091x2 Simplifying a = -1.636363636 + -0.09090909091x2
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