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Simplifying -5r + 4 = 7 + -1r Reorder the terms: 4 + -5r = 7 + -1r Solving 4 + -5r = 7 + -1r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add 'r' to each side of the equation. 4 + -5r + r = 7 + -1r + r Combine like terms: -5r + r = -4r 4 + -4r = 7 + -1r + r Combine like terms: -1r + r = 0 4 + -4r = 7 + 0 4 + -4r = 7 Add '-4' to each side of the equation. 4 + -4 + -4r = 7 + -4 Combine like terms: 4 + -4 = 0 0 + -4r = 7 + -4 -4r = 7 + -4 Combine like terms: 7 + -4 = 3 -4r = 3 Divide each side by '-4'. r = -0.75 Simplifying r = -0.75
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