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Simplifying 0.98(r + 3) = 6.86 Reorder the terms: 0.98(3 + r) = 6.86 (3 * 0.98 + r * 0.98) = 6.86 (2.94 + 0.98r) = 6.86 Solving 2.94 + 0.98r = 6.86 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2.94' to each side of the equation. 2.94 + -2.94 + 0.98r = 6.86 + -2.94 Combine like terms: 2.94 + -2.94 = 0.00 0.00 + 0.98r = 6.86 + -2.94 0.98r = 6.86 + -2.94 Combine like terms: 6.86 + -2.94 = 3.92 0.98r = 3.92 Divide each side by '0.98'. r = 4 Simplifying r = 4
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