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Simplifying -8 + 2r + 5 + -5r = 4 + -2r Reorder the terms: -8 + 5 + 2r + -5r = 4 + -2r Combine like terms: -8 + 5 = -3 -3 + 2r + -5r = 4 + -2r Combine like terms: 2r + -5r = -3r -3 + -3r = 4 + -2r Solving -3 + -3r = 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. -3 + -3r + 2r = 4 + -2r + 2r Combine like terms: -3r + 2r = -1r -3 + -1r = 4 + -2r + 2r Combine like terms: -2r + 2r = 0 -3 + -1r = 4 + 0 -3 + -1r = 4 Add '3' to each side of the equation. -3 + 3 + -1r = 4 + 3 Combine like terms: -3 + 3 = 0 0 + -1r = 4 + 3 -1r = 4 + 3 Combine like terms: 4 + 3 = 7 -1r = 7 Divide each side by '-1'. r = -7 Simplifying r = -7
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