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Simplifying 9(x + 7) = 3(3x + 1) Reorder the terms: 9(7 + x) = 3(3x + 1) (7 * 9 + x * 9) = 3(3x + 1) (63 + 9x) = 3(3x + 1) Reorder the terms: 63 + 9x = 3(1 + 3x) 63 + 9x = (1 * 3 + 3x * 3) 63 + 9x = (3 + 9x) Add '-9x' to each side of the equation. 63 + 9x + -9x = 3 + 9x + -9x Combine like terms: 9x + -9x = 0 63 + 0 = 3 + 9x + -9x 63 = 3 + 9x + -9x Combine like terms: 9x + -9x = 0 63 = 3 + 0 63 = 3 Solving 63 = 3 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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