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Simplifying 3x + 21x + -9 = 6(4x + 8) Reorder the terms: -9 + 3x + 21x = 6(4x + 8) Combine like terms: 3x + 21x = 24x -9 + 24x = 6(4x + 8) Reorder the terms: -9 + 24x = 6(8 + 4x) -9 + 24x = (8 * 6 + 4x * 6) -9 + 24x = (48 + 24x) Add '-24x' to each side of the equation. -9 + 24x + -24x = 48 + 24x + -24x Combine like terms: 24x + -24x = 0 -9 + 0 = 48 + 24x + -24x -9 = 48 + 24x + -24x Combine like terms: 24x + -24x = 0 -9 = 48 + 0 -9 = 48 Solving -9 = 48 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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