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