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