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Simplifying (x + 25) + -1(x + -12) = 13 Reorder the terms: (25 + x) + -1(x + -12) = 13 Remove parenthesis around (25 + x) 25 + x + -1(x + -12) = 13 Reorder the terms: 25 + x + -1(-12 + x) = 13 25 + x + (-12 * -1 + x * -1) = 13 25 + x + (12 + -1x) = 13 Reorder the terms: 25 + 12 + x + -1x = 13 Combine like terms: 25 + 12 = 37 37 + x + -1x = 13 Combine like terms: x + -1x = 0 37 + 0 = 13 37 = 13 Solving 37 = 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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