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Simplifying 9 * 2 + -3 * 4 + 2 * 9 * 2 = 3 * 9 * 2 + -3 * 4 Multiply 9 * 2 18 + -3 * 4 + 2 * 9 * 2 = 3 * 9 * 2 + -3 * 4 Multiply -3 * 4 18 + -12 + 2 * 9 * 2 = 3 * 9 * 2 + -3 * 4 Multiply 2 * 9 18 + -12 + 18 * 2 = 3 * 9 * 2 + -3 * 4 Multiply 18 * 2 18 + -12 + 36 = 3 * 9 * 2 + -3 * 4 Combine like terms: 18 + -12 = 6 6 + 36 = 3 * 9 * 2 + -3 * 4 Combine like terms: 6 + 36 = 42 42 = 3 * 9 * 2 + -3 * 4 Multiply 3 * 9 42 = 27 * 2 + -3 * 4 Multiply 27 * 2 42 = 54 + -3 * 4 Multiply -3 * 4 42 = 54 + -12 Combine like terms: 54 + -12 = 42 42 = 42 Add '-42' to each side of the equation. 42 + -42 = 42 + -42 Combine like terms: 42 + -42 = 0 0 = 42 + -42 Combine like terms: 42 + -42 = 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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