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Simplifying 27 + -7r = 2 + -2r Solving 27 + -7r = 2 + -2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2r' to each side of the equation. 27 + -7r + 2r = 2 + -2r + 2r Combine like terms: -7r + 2r = -5r 27 + -5r = 2 + -2r + 2r Combine like terms: -2r + 2r = 0 27 + -5r = 2 + 0 27 + -5r = 2 Add '-27' to each side of the equation. 27 + -27 + -5r = 2 + -27 Combine like terms: 27 + -27 = 0 0 + -5r = 2 + -27 -5r = 2 + -27 Combine like terms: 2 + -27 = -25 -5r = -25 Divide each side by '-5'. r = 5 Simplifying r = 5
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