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Simplifying (8y2 + -5y + 7) + -1(9y2 + -5y + 9) = 0 Reorder the terms: (7 + -5y + 8y2) + -1(9y2 + -5y + 9) = 0 Remove parenthesis around (7 + -5y + 8y2) 7 + -5y + 8y2 + -1(9y2 + -5y + 9) = 0 Reorder the terms: 7 + -5y + 8y2 + -1(9 + -5y + 9y2) = 0 7 + -5y + 8y2 + (9 * -1 + -5y * -1 + 9y2 * -1) = 0 7 + -5y + 8y2 + (-9 + 5y + -9y2) = 0 Reorder the terms: 7 + -9 + -5y + 5y + 8y2 + -9y2 = 0 Combine like terms: 7 + -9 = -2 -2 + -5y + 5y + 8y2 + -9y2 = 0 Combine like terms: -5y + 5y = 0 -2 + 0 + 8y2 + -9y2 = 0 -2 + 8y2 + -9y2 = 0 Combine like terms: 8y2 + -9y2 = -1y2 -2 + -1y2 = 0 Solving -2 + -1y2 = 0 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1y2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1y2 = 0 + 2 -1y2 = 0 + 2 Combine like terms: 0 + 2 = 2 -1y2 = 2 Divide each side by '-1'. y2 = -2 Simplifying y2 = -2 Reorder the terms: 2 + y2 = -2 + 2 Combine like terms: -2 + 2 = 0 2 + y2 = 0 The solution to this equation could not be determined.
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