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Simplifying (x + 2) + -1(x + -2) = 9 Reorder the terms: (2 + x) + -1(x + -2) = 9 Remove parenthesis around (2 + x) 2 + x + -1(x + -2) = 9 Reorder the terms: 2 + x + -1(-2 + x) = 9 2 + x + (-2 * -1 + x * -1) = 9 2 + x + (2 + -1x) = 9 Reorder the terms: 2 + 2 + x + -1x = 9 Combine like terms: 2 + 2 = 4 4 + x + -1x = 9 Combine like terms: x + -1x = 0 4 + 0 = 9 4 = 9 Solving 4 = 9 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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