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Simplifying 6x + -7 = 3(x + 4) + 3x Reorder the terms: -7 + 6x = 3(x + 4) + 3x Reorder the terms: -7 + 6x = 3(4 + x) + 3x -7 + 6x = (4 * 3 + x * 3) + 3x -7 + 6x = (12 + 3x) + 3x Combine like terms: 3x + 3x = 6x -7 + 6x = 12 + 6x Add '-6x' to each side of the equation. -7 + 6x + -6x = 12 + 6x + -6x Combine like terms: 6x + -6x = 0 -7 + 0 = 12 + 6x + -6x -7 = 12 + 6x + -6x Combine like terms: 6x + -6x = 0 -7 = 12 + 0 -7 = 12 Solving -7 = 12 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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