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Simplifying -7 + 8r = -5r Solving -7 + 8r = -5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5r' to each side of the equation. -7 + 8r + 5r = -5r + 5r Combine like terms: 8r + 5r = 13r -7 + 13r = -5r + 5r Combine like terms: -5r + 5r = 0 -7 + 13r = 0 Add '7' to each side of the equation. -7 + 7 + 13r = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 13r = 0 + 7 13r = 0 + 7 Combine like terms: 0 + 7 = 7 13r = 7 Divide each side by '13'. r = 0.5384615385 Simplifying r = 0.5384615385
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