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Simplifying x + -3x = -2x + -3 + -1 Combine like terms: x + -3x = -2x -2x = -2x + -3 + -1 Reorder the terms: -2x = -3 + -1 + -2x Combine like terms: -3 + -1 = -4 -2x = -4 + -2x Add '2x' to each side of the equation. -2x + 2x = -4 + -2x + 2x Combine like terms: -2x + 2x = 0 0 = -4 + -2x + 2x Combine like terms: -2x + 2x = 0 0 = -4 + 0 0 = -4 Solving 0 = -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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