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Simplifying 5r + 8 = r + -4 Reorder the terms: 8 + 5r = r + -4 Reorder the terms: 8 + 5r = -4 + r Solving 8 + 5r = -4 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. 8 + 5r + -1r = -4 + r + -1r Combine like terms: 5r + -1r = 4r 8 + 4r = -4 + r + -1r Combine like terms: r + -1r = 0 8 + 4r = -4 + 0 8 + 4r = -4 Add '-8' to each side of the equation. 8 + -8 + 4r = -4 + -8 Combine like terms: 8 + -8 = 0 0 + 4r = -4 + -8 4r = -4 + -8 Combine like terms: -4 + -8 = -12 4r = -12 Divide each side by '4'. r = -3 Simplifying r = -3
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