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Simplifying (x + 6) = (x + 9) Reorder the terms: (6 + x) = (x + 9) Remove parenthesis around (6 + x) 6 + x = (x + 9) Reorder the terms: 6 + x = (9 + x) Remove parenthesis around (9 + x) 6 + x = 9 + x Add '-1x' to each side of the equation. 6 + x + -1x = 9 + x + -1x Combine like terms: x + -1x = 0 6 + 0 = 9 + x + -1x 6 = 9 + x + -1x Combine like terms: x + -1x = 0 6 = 9 + 0 6 = 9 Solving 6 = 9 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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