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Simplifying (66 + -1x) + -1(54 + -1x) = 0 Remove parenthesis around (66 + -1x) 66 + -1x + -1(54 + -1x) = 0 66 + -1x + (54 * -1 + -1x * -1) = 0 66 + -1x + (-54 + 1x) = 0 Reorder the terms: 66 + -54 + -1x + 1x = 0 Combine like terms: 66 + -54 = 12 12 + -1x + 1x = 0 Combine like terms: -1x + 1x = 0 12 + 0 = 0 12 = 0 Solving 12 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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