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Simplifying 9 = -1a2 + -18 Reorder the terms: 9 = -18 + -1a2 Solving 9 = -18 + -1a2 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add 'a2' to each side of the equation. 9 + a2 = -18 + -1a2 + a2 Combine like terms: -1a2 + a2 = 0 9 + a2 = -18 + 0 9 + a2 = -18 Add '-9' to each side of the equation. 9 + -9 + a2 = -18 + -9 Combine like terms: 9 + -9 = 0 0 + a2 = -18 + -9 a2 = -18 + -9 Combine like terms: -18 + -9 = -27 a2 = -27 Simplifying a2 = -27 Reorder the terms: 27 + a2 = -27 + 27 Combine like terms: -27 + 27 = 0 27 + a2 = 0 The solution to this equation could not be determined.
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