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Simplifying -7x + -1(-13 + -7x) = 11 -7x + (-13 * -1 + -7x * -1) = 11 -7x + (13 + 7x) = 11 Reorder the terms: 13 + -7x + 7x = 11 Combine like terms: -7x + 7x = 0 13 + 0 = 11 13 = 11 Solving 13 = 11 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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