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Simplifying 9s2 + -9 = 0 Reorder the terms: -9 + 9s2 = 0 Solving -9 + 9s2 = 0 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 9s2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 9s2 = 0 + 9 9s2 = 0 + 9 Combine like terms: 0 + 9 = 9 9s2 = 9 Divide each side by '9'. s2 = 1 Simplifying s2 = 1 Take the square root of each side: s = {-1, 1}
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