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Simplifying 8 + 7r = 4r + 3 Reorder the terms: 8 + 7r = 3 + 4r Solving 8 + 7r = 3 + 4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4r' to each side of the equation. 8 + 7r + -4r = 3 + 4r + -4r Combine like terms: 7r + -4r = 3r 8 + 3r = 3 + 4r + -4r Combine like terms: 4r + -4r = 0 8 + 3r = 3 + 0 8 + 3r = 3 Add '-8' to each side of the equation. 8 + -8 + 3r = 3 + -8 Combine like terms: 8 + -8 = 0 0 + 3r = 3 + -8 3r = 3 + -8 Combine like terms: 3 + -8 = -5 3r = -5 Divide each side by '3'. r = -1.666666667 Simplifying r = -1.666666667
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