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Simplifying (7 + x)(2) + (7 + -1x)(2) = 130 Reorder the terms for easier multiplication: 2(7 + x) + (7 + -1x)(2) = 130 (7 * 2 + x * 2) + (7 + -1x)(2) = 130 (14 + 2x) + (7 + -1x)(2) = 130 Reorder the terms for easier multiplication: 14 + 2x + 2(7 + -1x) = 130 14 + 2x + (7 * 2 + -1x * 2) = 130 14 + 2x + (14 + -2x) = 130 Reorder the terms: 14 + 14 + 2x + -2x = 130 Combine like terms: 14 + 14 = 28 28 + 2x + -2x = 130 Combine like terms: 2x + -2x = 0 28 + 0 = 130 28 = 130 Solving 28 = 130 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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