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Simplifying 2x + (12 + -9) = 2 + 9 + 2x Combine like terms: 12 + -9 = 3 2x + (3) = 2 + 9 + 2x 2x + 3 = 2 + 9 + 2x Reorder the terms: 3 + 2x = 2 + 9 + 2x Combine like terms: 2 + 9 = 11 3 + 2x = 11 + 2x Add '-2x' to each side of the equation. 3 + 2x + -2x = 11 + 2x + -2x Combine like terms: 2x + -2x = 0 3 + 0 = 11 + 2x + -2x 3 = 11 + 2x + -2x Combine like terms: 2x + -2x = 0 3 = 11 + 0 3 = 11 Solving 3 = 11 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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