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Simplifying -1r + -5 = 4 + 2r Reorder the terms: -5 + -1r = 4 + 2r Solving -5 + -1r = 4 + 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. -5 + -1r + -2r = 4 + 2r + -2r Combine like terms: -1r + -2r = -3r -5 + -3r = 4 + 2r + -2r Combine like terms: 2r + -2r = 0 -5 + -3r = 4 + 0 -5 + -3r = 4 Add '5' to each side of the equation. -5 + 5 + -3r = 4 + 5 Combine like terms: -5 + 5 = 0 0 + -3r = 4 + 5 -3r = 4 + 5 Combine like terms: 4 + 5 = 9 -3r = 9 Divide each side by '-3'. r = -3 Simplifying r = -3
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