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Simplifying 9x + 9 = 9(x + 7) + -9 Reorder the terms: 9 + 9x = 9(x + 7) + -9 Reorder the terms: 9 + 9x = 9(7 + x) + -9 9 + 9x = (7 * 9 + x * 9) + -9 9 + 9x = (63 + 9x) + -9 Reorder the terms: 9 + 9x = 63 + -9 + 9x Combine like terms: 63 + -9 = 54 9 + 9x = 54 + 9x Add '-9x' to each side of the equation. 9 + 9x + -9x = 54 + 9x + -9x Combine like terms: 9x + -9x = 0 9 + 0 = 54 + 9x + -9x 9 = 54 + 9x + -9x Combine like terms: 9x + -9x = 0 9 = 54 + 0 9 = 54 Solving 9 = 54 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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