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Simplifying -40 + -1(-53) = 0 Multiply -1 * -53 -40 + 53 = 0 Combine like terms: -40 + 53 = 13 13 = 0 Solving 13 = 0 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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