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Simplifying -1 + 4x = 3(x + 1) + x Reorder the terms: -1 + 4x = 3(1 + x) + x -1 + 4x = (1 * 3 + x * 3) + x -1 + 4x = (3 + 3x) + x Combine like terms: 3x + x = 4x -1 + 4x = 3 + 4x Add '-4x' to each side of the equation. -1 + 4x + -4x = 3 + 4x + -4x Combine like terms: 4x + -4x = 0 -1 + 0 = 3 + 4x + -4x -1 = 3 + 4x + -4x Combine like terms: 4x + -4x = 0 -1 = 3 + 0 -1 = 3 Solving -1 = 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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