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Simplifying (x + 25) + -1(x + -120) = 13 Reorder the terms: (25 + x) + -1(x + -120) = 13 Remove parenthesis around (25 + x) 25 + x + -1(x + -120) = 13 Reorder the terms: 25 + x + -1(-120 + x) = 13 25 + x + (-120 * -1 + x * -1) = 13 25 + x + (120 + -1x) = 13 Reorder the terms: 25 + 120 + x + -1x = 13 Combine like terms: 25 + 120 = 145 145 + x + -1x = 13 Combine like terms: x + -1x = 0 145 + 0 = 13 145 = 13 Solving 145 = 13 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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