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Simplifying 9 + -1(1 + -3y) = 4 + y(3 + -1y) 9 + (1 * -1 + -3y * -1) = 4 + y(3 + -1y) 9 + (-1 + 3y) = 4 + y(3 + -1y) Combine like terms: 9 + -1 = 8 8 + 3y = 4 + y(3 + -1y) 8 + 3y = 4 + (3 * y + -1y * y) 8 + 3y = 4 + (3y + -1y2) Add '-3y' to each side of the equation. 8 + 3y + -3y = 4 + 3y + -3y + -1y2 Combine like terms: 3y + -3y = 0 8 + 0 = 4 + 3y + -3y + -1y2 8 = 4 + 3y + -3y + -1y2 Combine like terms: 3y + -3y = 0 8 = 4 + 0 + -1y2 8 = 4 + -1y2 Solving 8 = 4 + -1y2 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add 'y2' to each side of the equation. 8 + y2 = 4 + -1y2 + y2 Combine like terms: -1y2 + y2 = 0 8 + y2 = 4 + 0 8 + y2 = 4 Add '-8' to each side of the equation. 8 + -8 + y2 = 4 + -8 Combine like terms: 8 + -8 = 0 0 + y2 = 4 + -8 y2 = 4 + -8 Combine like terms: 4 + -8 = -4 y2 = -4 Simplifying y2 = -4 Reorder the terms: 4 + y2 = -4 + 4 Combine like terms: -4 + 4 = 0 4 + y2 = 0 The solution to this equation could not be determined.
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