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Simplifying ay2 + 9y + -15 = 0 Reorder the terms: -15 + ay2 + 9y = 0 Solving -15 + ay2 + 9y = 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 + ay2 + 15 + 9y = 0 + 15 Reorder the terms: -15 + 15 + ay2 + 9y = 0 + 15 Combine like terms: -15 + 15 = 0 0 + ay2 + 9y = 0 + 15 ay2 + 9y = 0 + 15 Combine like terms: 0 + 15 = 15 ay2 + 9y = 15 Add '-9y' to each side of the equation. ay2 + 9y + -9y = 15 + -9y Combine like terms: 9y + -9y = 0 ay2 + 0 = 15 + -9y ay2 = 15 + -9y Divide each side by 'y2'. a = 15y-2 + -9y-1 Simplifying a = 15y-2 + -9y-1
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