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Simplifying 2x + 9 = x + 7 + x Reorder the terms: 9 + 2x = x + 7 + x Reorder the terms: 9 + 2x = 7 + x + x Combine like terms: x + x = 2x 9 + 2x = 7 + 2x Add '-2x' to each side of the equation. 9 + 2x + -2x = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 9 + 0 = 7 + 2x + -2x 9 = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 9 = 7 + 0 9 = 7 Solving 9 = 7 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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