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Simplifying y2 + -5y2 + -66 = 0 Reorder the terms: -66 + y2 + -5y2 = 0 Combine like terms: y2 + -5y2 = -4y2 -66 + -4y2 = 0 Solving -66 + -4y2 = 0 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '66' to each side of the equation. -66 + 66 + -4y2 = 0 + 66 Combine like terms: -66 + 66 = 0 0 + -4y2 = 0 + 66 -4y2 = 0 + 66 Combine like terms: 0 + 66 = 66 -4y2 = 66 Divide each side by '-4'. y2 = -16.5 Simplifying y2 = -16.5 Reorder the terms: 16.5 + y2 = -16.5 + 16.5 Combine like terms: -16.5 + 16.5 = 0.0 16.5 + y2 = 0.0 The solution to this equation could not be determined.
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