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Simplifying 270 = 9r Solving 270 = 9r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-9r' to each side of the equation. 270 + -9r = 9r + -9r Combine like terms: 9r + -9r = 0 270 + -9r = 0 Add '-270' to each side of the equation. 270 + -270 + -9r = 0 + -270 Combine like terms: 270 + -270 = 0 0 + -9r = 0 + -270 -9r = 0 + -270 Combine like terms: 0 + -270 = -270 -9r = -270 Divide each side by '-9'. r = 30 Simplifying r = 30
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