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Simplifying -5 + -1r + 1 = 2r Reorder the terms: -5 + 1 + -1r = 2r Combine like terms: -5 + 1 = -4 -4 + -1r = 2r Solving -4 + -1r = 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -4 + -1r + -2r = 2r + -2r Combine like terms: -1r + -2r = -3r -4 + -3r = 2r + -2r Combine like terms: 2r + -2r = 0 -4 + -3r = 0 Add '4' to each side of the equation. -4 + 4 + -3r = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3r = 0 + 4 -3r = 0 + 4 Combine like terms: 0 + 4 = 4 -3r = 4 Divide each side by '-3'. r = -1.333333333 Simplifying r = -1.333333333
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