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Simplifying 12 + 1r = r + -8 Reorder the terms: 12 + 1r = -8 + r Solving 12 + 1r = -8 + 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 + 1r + -1r = -8 + r + -1r Combine like terms: 1r + -1r = 0 12 + 0 = -8 + r + -1r 12 = -8 + r + -1r Combine like terms: r + -1r = 0 12 = -8 + 0 12 = -8 Add '-12' to each side of the equation. 12 + -12 = -8 + -12 Combine like terms: 12 + -12 = 0 0 = -8 + -12 Combine like terms: -8 + -12 = -20 0 = -20 Simplifying 0 = -20 Combine like terms: 0 + 20 = 20 20 = -20 + 20 Combine like terms: -20 + 20 = 0 20 = 0 The solution to this equation could not be determined.
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