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Simplifying 2r + -7 = 3 Reorder the terms: -7 + 2r = 3 Solving -7 + 2r = 3 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 2r = 3 + 7 Combine like terms: -7 + 7 = 0 0 + 2r = 3 + 7 2r = 3 + 7 Combine like terms: 3 + 7 = 10 2r = 10 Divide each side by '2'. r = 5 Simplifying r = 5
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