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Simplifying 9 + -4y2 = 57 Solving 9 + -4y2 = 57 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4y2 = 57 + -9 Combine like terms: 9 + -9 = 0 0 + -4y2 = 57 + -9 -4y2 = 57 + -9 Combine like terms: 57 + -9 = 48 -4y2 = 48 Divide each side by '-4'. y2 = -12 Simplifying y2 = -12 Reorder the terms: 12 + y2 = -12 + 12 Combine like terms: -12 + 12 = 0 12 + y2 = 0 The solution to this equation could not be determined.
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