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Simplifying -6r + 2(r + 2) + -5 = -20true Reorder the terms: -6r + 2(2 + r) + -5 = -20true -6r + (2 * 2 + r * 2) + -5 = -20true -6r + (4 + 2r) + -5 = -20true Reorder the terms: 4 + -5 + -6r + 2r = -20true Combine like terms: 4 + -5 = -1 -1 + -6r + 2r = -20true Combine like terms: -6r + 2r = -4r -1 + -4r = -20true Solving -1 + -4r = -20ertu Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '20ertu' to each side of the equation. -1 + 20ertu + -4r = -20ertu + 20ertu Combine like terms: -20ertu + 20ertu = 0 -1 + 20ertu + -4r = 0 Add '1' to each side of the equation. -1 + 20ertu + 1 + -4r = 0 + 1 Reorder the terms: -1 + 1 + 20ertu + -4r = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 20ertu + -4r = 0 + 1 20ertu + -4r = 0 + 1 Combine like terms: 0 + 1 = 1 20ertu + -4r = 1 Reorder the terms: -1 + 20ertu + -4r = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + 20ertu + -4r = 0 The solution to this equation could not be determined.
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