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Simplifying 2 * 2 + x + 9 = 3 * 3 + x + 4 Multiply 2 * 2 4 + x + 9 = 3 * 3 + x + 4 Reorder the terms: 4 + 9 + x = 3 * 3 + x + 4 Combine like terms: 4 + 9 = 13 13 + x = 3 * 3 + x + 4 Multiply 3 * 3 13 + x = 9 + x + 4 Reorder the terms: 13 + x = 9 + 4 + x Combine like terms: 9 + 4 = 13 13 + x = 13 + x Add '-13' to each side of the equation. 13 + -13 + x = 13 + -13 + x Combine like terms: 13 + -13 = 0 0 + x = 13 + -13 + x x = 13 + -13 + x Combine like terms: 13 + -13 = 0 x = 0 + x x = x Add '-1x' to each side of the equation. x + -1x = x + -1x Combine like terms: x + -1x = 0 0 = x + -1x Combine like terms: x + -1x = 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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