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Simplifying 4x + -5 + 7x = 3(2x + -7) + 5x Reorder the terms: -5 + 4x + 7x = 3(2x + -7) + 5x Combine like terms: 4x + 7x = 11x -5 + 11x = 3(2x + -7) + 5x Reorder the terms: -5 + 11x = 3(-7 + 2x) + 5x -5 + 11x = (-7 * 3 + 2x * 3) + 5x -5 + 11x = (-21 + 6x) + 5x Combine like terms: 6x + 5x = 11x -5 + 11x = -21 + 11x Add '-11x' to each side of the equation. -5 + 11x + -11x = -21 + 11x + -11x Combine like terms: 11x + -11x = 0 -5 + 0 = -21 + 11x + -11x -5 = -21 + 11x + -11x Combine like terms: 11x + -11x = 0 -5 = -21 + 0 -5 = -21 Solving -5 = -21 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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