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Simplifying y2 + 18 = -9y2 Reorder the terms: 18 + y2 = -9y2 Solving 18 + y2 = -9y2 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '9y2' to each side of the equation. 18 + y2 + 9y2 = -9y2 + 9y2 Combine like terms: y2 + 9y2 = 10y2 18 + 10y2 = -9y2 + 9y2 Combine like terms: -9y2 + 9y2 = 0 18 + 10y2 = 0 Add '-18' to each side of the equation. 18 + -18 + 10y2 = 0 + -18 Combine like terms: 18 + -18 = 0 0 + 10y2 = 0 + -18 10y2 = 0 + -18 Combine like terms: 0 + -18 = -18 10y2 = -18 Divide each side by '10'. y2 = -1.8 Simplifying y2 = -1.8 Reorder the terms: 1.8 + y2 = -1.8 + 1.8 Combine like terms: -1.8 + 1.8 = 0.0 1.8 + y2 = 0.0 The solution to this equation could not be determined.
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