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Simplifying 5 = 2r + -1 Reorder the terms: 5 = -1 + 2r Solving 5 = -1 + 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. 5 + -2r = -1 + 2r + -2r Combine like terms: 2r + -2r = 0 5 + -2r = -1 + 0 5 + -2r = -1 Add '-5' to each side of the equation. 5 + -5 + -2r = -1 + -5 Combine like terms: 5 + -5 = 0 0 + -2r = -1 + -5 -2r = -1 + -5 Combine like terms: -1 + -5 = -6 -2r = -6 Divide each side by '-2'. r = 3 Simplifying r = 3
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