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Simplifying -1x2 + -18 = 90 Reorder the terms: -18 + -1x2 = 90 Solving -18 + -1x2 = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -1x2 = 90 + 18 Combine like terms: -18 + 18 = 0 0 + -1x2 = 90 + 18 -1x2 = 90 + 18 Combine like terms: 90 + 18 = 108 -1x2 = 108 Divide each side by '-1'. x2 = -108 Simplifying x2 = -108 Reorder the terms: 108 + x2 = -108 + 108 Combine like terms: -108 + 108 = 0 108 + x2 = 0 The solution to this equation could not be determined.
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