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Simplifying 4x + -7 = 7(x + 1) + -3x Reorder the terms: -7 + 4x = 7(x + 1) + -3x Reorder the terms: -7 + 4x = 7(1 + x) + -3x -7 + 4x = (1 * 7 + x * 7) + -3x -7 + 4x = (7 + 7x) + -3x Combine like terms: 7x + -3x = 4x -7 + 4x = 7 + 4x Add '-4x' to each side of the equation. -7 + 4x + -4x = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 -7 + 0 = 7 + 4x + -4x -7 = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 -7 = 7 + 0 -7 = 7 Solving -7 = 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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