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Simplifying 12 = 12r Solving 12 = 12r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-12r' to each side of the equation. 12 + -12r = 12r + -12r Combine like terms: 12r + -12r = 0 12 + -12r = 0 Add '-12' to each side of the equation. 12 + -12 + -12r = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -12r = 0 + -12 -12r = 0 + -12 Combine like terms: 0 + -12 = -12 -12r = -12 Divide each side by '-12'. r = 1 Simplifying r = 1
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