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Simplifying -1x + 2 = -1x + 21 Reorder the terms: 2 + -1x = -1x + 21 Reorder the terms: 2 + -1x = 21 + -1x Add 'x' to each side of the equation. 2 + -1x + x = 21 + -1x + x Combine like terms: -1x + x = 0 2 + 0 = 21 + -1x + x 2 = 21 + -1x + x Combine like terms: -1x + x = 0 2 = 21 + 0 2 = 21 Solving 2 = 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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