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Simplifying 3x + -1py + -3y + px = 0 reorder the terms: px + -1py + 3x + -3y = 0 solving px + -1py + 3x + -3y = 0 solving for variable 'p'. move all terms containing p to the left, all other terms to the right. add '-3x' to each side of the equation. px + -1py + 3x + -3x + -3y = 0 + -3x combine like terms:   3x + -3x = 0 px + -1py + 0 + -3y = 0 + -3x px + -1py + -3y = 0 + -3x remove the zero: px + -1py + -3y = -3x add '3y' to each side of the equation. px + -1py + -3y + 3y = -3x + 3y combine like terms: -3y + 3y = 0 px + -1py + 0 = -3x + 3y px + -1py = -3x + 3y reorder the terms: px + -1py + 3x + -3y = -3x + 3x + 3y + -3y combine like terms: -3x + 3x = 0 px + -1py + 3x + -3y = 0 + 3y + -3y px + -1py + 3x + -3y = 3y + -3y combine like terms: 3y + -3y = 0 px + -1py + 3x + -3y = 0 the solution to this equation could not be determined.

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