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Simplifying 5 + 2r = 7 Solving 5 + 2r = 7 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 2r = 7 + -5 Combine like terms: 5 + -5 = 0 0 + 2r = 7 + -5 2r = 7 + -5 Combine like terms: 7 + -5 = 2 2r = 2 Divide each side by '2'. r = 1 Simplifying r = 1
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