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Simplifying 3(2x + 7) = 4x + 7 + 2x Reorder the terms: 3(7 + 2x) = 4x + 7 + 2x (7 * 3 + 2x * 3) = 4x + 7 + 2x (21 + 6x) = 4x + 7 + 2x Reorder the terms: 21 + 6x = 7 + 4x + 2x Combine like terms: 4x + 2x = 6x 21 + 6x = 7 + 6x Add '-6x' to each side of the equation. 21 + 6x + -6x = 7 + 6x + -6x Combine like terms: 6x + -6x = 0 21 + 0 = 7 + 6x + -6x 21 = 7 + 6x + -6x Combine like terms: 6x + -6x = 0 21 = 7 + 0 21 = 7 Solving 21 = 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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