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Simplifying 9(x + 2) + 5 = 9x + 7 Reorder the terms: 9(2 + x) + 5 = 9x + 7 (2 * 9 + x * 9) + 5 = 9x + 7 (18 + 9x) + 5 = 9x + 7 Reorder the terms: 18 + 5 + 9x = 9x + 7 Combine like terms: 18 + 5 = 23 23 + 9x = 9x + 7 Reorder the terms: 23 + 9x = 7 + 9x Add '-9x' to each side of the equation. 23 + 9x + -9x = 7 + 9x + -9x Combine like terms: 9x + -9x = 0 23 + 0 = 7 + 9x + -9x 23 = 7 + 9x + -9x Combine like terms: 9x + -9x = 0 23 = 7 + 0 23 = 7 Solving 23 = 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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