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Simplifying -6r + -4 = 2r + -1(1 + 8r) Reorder the terms: -4 + -6r = 2r + -1(1 + 8r) -4 + -6r = 2r + (1 * -1 + 8r * -1) -4 + -6r = 2r + (-1 + -8r) Reorder the terms: -4 + -6r = -1 + 2r + -8r Combine like terms: 2r + -8r = -6r -4 + -6r = -1 + -6r Add '6r' to each side of the equation. -4 + -6r + 6r = -1 + -6r + 6r Combine like terms: -6r + 6r = 0 -4 + 0 = -1 + -6r + 6r -4 = -1 + -6r + 6r Combine like terms: -6r + 6r = 0 -4 = -1 + 0 -4 = -1 Solving -4 = -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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