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Simplifying 3r + 12 = r + 34 Reorder the terms: 12 + 3r = r + 34 Reorder the terms: 12 + 3r = 34 + r Solving 12 + 3r = 34 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. 12 + 3r + -1r = 34 + r + -1r Combine like terms: 3r + -1r = 2r 12 + 2r = 34 + r + -1r Combine like terms: r + -1r = 0 12 + 2r = 34 + 0 12 + 2r = 34 Add '-12' to each side of the equation. 12 + -12 + 2r = 34 + -12 Combine like terms: 12 + -12 = 0 0 + 2r = 34 + -12 2r = 34 + -12 Combine like terms: 34 + -12 = 22 2r = 22 Divide each side by '2'. r = 11 Simplifying r = 11
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