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Simplifying 9 * 5 * 7 * 1 + 63 = 0 Multiply 9 * 5 45 * 7 * 1 + 63 = 0 Multiply 45 * 7 315 * 1 + 63 = 0 Multiply 315 * 1 315 + 63 = 0 Combine like terms: 315 + 63 = 378 378 = 0 Solving 378 = 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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