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Simplifying 4x + -7x + -13 = -3x + 9 + -13 Reorder the terms: -13 + 4x + -7x = -3x + 9 + -13 Combine like terms: 4x + -7x = -3x -13 + -3x = -3x + 9 + -13 Reorder the terms: -13 + -3x = 9 + -13 + -3x Combine like terms: 9 + -13 = -4 -13 + -3x = -4 + -3x Add '3x' to each side of the equation. -13 + -3x + 3x = -4 + -3x + 3x Combine like terms: -3x + 3x = 0 -13 + 0 = -4 + -3x + 3x -13 = -4 + -3x + 3x Combine like terms: -3x + 3x = 0 -13 = -4 + 0 -13 = -4 Solving -13 = -4 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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