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Simplifying a2 + -2a2 + -15 = 0 Reorder the terms: -15 + a2 + -2a2 = 0 Combine like terms: a2 + -2a2 = -1a2 -15 + -1a2 = 0 Solving -15 + -1a2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1a2 = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1a2 = 0 + 15 -1a2 = 0 + 15 Combine like terms: 0 + 15 = 15 -1a2 = 15 Divide each side by '-1'. a2 = -15 Simplifying a2 = -15 Reorder the terms: 15 + a2 = -15 + 15 Combine like terms: -15 + 15 = 0 15 + a2 = 0 The solution to this equation could not be determined.
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