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Simplifying 4 * 7 + 3 * 9 = 0 Multiply 4 * 7 28 + 3 * 9 = 0 Multiply 3 * 9 28 + 27 = 0 Combine like terms: 28 + 27 = 55 55 = 0 Solving 55 = 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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