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Simplifying -1r + 1 = -5r + 9 Reorder the terms: 1 + -1r = -5r + 9 Reorder the terms: 1 + -1r = 9 + -5r Solving 1 + -1r = 9 + -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. 1 + -1r + 5r = 9 + -5r + 5r Combine like terms: -1r + 5r = 4r 1 + 4r = 9 + -5r + 5r Combine like terms: -5r + 5r = 0 1 + 4r = 9 + 0 1 + 4r = 9 Add '-1' to each side of the equation. 1 + -1 + 4r = 9 + -1 Combine like terms: 1 + -1 = 0 0 + 4r = 9 + -1 4r = 9 + -1 Combine like terms: 9 + -1 = 8 4r = 8 Divide each side by '4'. r = 2 Simplifying r = 2
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