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Simplifying 8r + 3 = 10 + 7r Reorder the terms: 3 + 8r = 10 + 7r Solving 3 + 8r = 10 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. 3 + 8r + -7r = 10 + 7r + -7r Combine like terms: 8r + -7r = 1r 3 + 1r = 10 + 7r + -7r Combine like terms: 7r + -7r = 0 3 + 1r = 10 + 0 3 + 1r = 10 Add '-3' to each side of the equation. 3 + -3 + 1r = 10 + -3 Combine like terms: 3 + -3 = 0 0 + 1r = 10 + -3 1r = 10 + -3 Combine like terms: 10 + -3 = 7 1r = 7 Divide each side by '1'. r = 7 Simplifying r = 7
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