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Simplifying r + -4 + 7r = 3 + 8r Reorder the terms: -4 + r + 7r = 3 + 8r Combine like terms: r + 7r = 8r -4 + 8r = 3 + 8r Add '-8r' to each side of the equation. -4 + 8r + -8r = 3 + 8r + -8r Combine like terms: 8r + -8r = 0 -4 + 0 = 3 + 8r + -8r -4 = 3 + 8r + -8r Combine like terms: 8r + -8r = 0 -4 = 3 + 0 -4 = 3 Solving -4 = 3 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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