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Simplifying 102 = -7r + 4 Reorder the terms: 102 = 4 + -7r Solving 102 = 4 + -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. 102 + 7r = 4 + -7r + 7r Combine like terms: -7r + 7r = 0 102 + 7r = 4 + 0 102 + 7r = 4 Add '-102' to each side of the equation. 102 + -102 + 7r = 4 + -102 Combine like terms: 102 + -102 = 0 0 + 7r = 4 + -102 7r = 4 + -102 Combine like terms: 4 + -102 = -98 7r = -98 Divide each side by '7'. r = -14 Simplifying r = -14
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