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Simplifying -7r + 4 = -8 Reorder the terms: 4 + -7r = -8 Solving 4 + -7r = -8 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -7r = -8 + -4 Combine like terms: 4 + -4 = 0 0 + -7r = -8 + -4 -7r = -8 + -4 Combine like terms: -8 + -4 = -12 -7r = -12 Divide each side by '-7'. r = 1.714285714 Simplifying r = 1.714285714
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