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