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Simplifying 7r + -8 + -4 = 25 Reorder the terms: -8 + -4 + 7r = 25 Combine like terms: -8 + -4 = -12 -12 + 7r = 25 Solving -12 + 7r = 25 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 7r = 25 + 12 Combine like terms: -12 + 12 = 0 0 + 7r = 25 + 12 7r = 25 + 12 Combine like terms: 25 + 12 = 37 7r = 37 Divide each side by '7'. r = 5.285714286 Simplifying r = 5.285714286
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