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Simplifying (5y2 + -7y + 1) + -1(9y2 + -7y + 2) = 0 Reorder the terms: (1 + -7y + 5y2) + -1(9y2 + -7y + 2) = 0 Remove parenthesis around (1 + -7y + 5y2) 1 + -7y + 5y2 + -1(9y2 + -7y + 2) = 0 Reorder the terms: 1 + -7y + 5y2 + -1(2 + -7y + 9y2) = 0 1 + -7y + 5y2 + (2 * -1 + -7y * -1 + 9y2 * -1) = 0 1 + -7y + 5y2 + (-2 + 7y + -9y2) = 0 Reorder the terms: 1 + -2 + -7y + 7y + 5y2 + -9y2 = 0 Combine like terms: 1 + -2 = -1 -1 + -7y + 7y + 5y2 + -9y2 = 0 Combine like terms: -7y + 7y = 0 -1 + 0 + 5y2 + -9y2 = 0 -1 + 5y2 + -9y2 = 0 Combine like terms: 5y2 + -9y2 = -4y2 -1 + -4y2 = 0 Solving -1 + -4y2 = 0 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -4y2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -4y2 = 0 + 1 -4y2 = 0 + 1 Combine like terms: 0 + 1 = 1 -4y2 = 1 Divide each side by '-4'. y2 = -0.25 Simplifying y2 = -0.25 Reorder the terms: 0.25 + y2 = -0.25 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.25 + y2 = 0.00 The solution to this equation could not be determined.
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