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Simplifying 7 * 2 * 10000 + 7 * 5 * 100 + (7(2 + 5) + -2) = 143547 Multiply 7 * 2 14 * 10000 + 7 * 5 * 100 + (7(2 + 5) + -2) = 143547 Multiply 14 * 10000 140000 + 7 * 5 * 100 + (7(2 + 5) + -2) = 143547 Multiply 7 * 5 140000 + 35 * 100 + (7(2 + 5) + -2) = 143547 Multiply 35 * 100 140000 + 3500 + (7(2 + 5) + -2) = 143547 Combine like terms: 2 + 5 = 7 140000 + 3500 + (7(7) + -2) = 143547 Multiply 7 * 7 140000 + 3500 + (49 + -2) = 143547 Combine like terms: 49 + -2 = 47 140000 + 3500 + (47) = 143547 140000 + 3500 + 47 = 143547 Combine like terms: 140000 + 3500 = 143500 143500 + 47 = 143547 Combine like terms: 143500 + 47 = 143547 143547 = 143547 Add '-143547' to each side of the equation. 143547 + -143547 = 143547 + -143547 Combine like terms: 143547 + -143547 = 0 0 = 143547 + -143547 Combine like terms: 143547 + -143547 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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