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Simplifying -12 = 8 + 5r Solving -12 = 8 + 5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5r' to each side of the equation. -12 + -5r = 8 + 5r + -5r Combine like terms: 5r + -5r = 0 -12 + -5r = 8 + 0 -12 + -5r = 8 Add '12' to each side of the equation. -12 + 12 + -5r = 8 + 12 Combine like terms: -12 + 12 = 0 0 + -5r = 8 + 12 -5r = 8 + 12 Combine like terms: 8 + 12 = 20 -5r = 20 Divide each side by '-5'. r = -4 Simplifying r = -4
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