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Simplifying 7r + 2 = (r + 4) Reorder the terms: 2 + 7r = (r + 4) Reorder the terms: 2 + 7r = (4 + r) Remove parenthesis around (4 + r) 2 + 7r = 4 + r Solving 2 + 7r = 4 + 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. 2 + 7r + -1r = 4 + r + -1r Combine like terms: 7r + -1r = 6r 2 + 6r = 4 + r + -1r Combine like terms: r + -1r = 0 2 + 6r = 4 + 0 2 + 6r = 4 Add '-2' to each side of the equation. 2 + -2 + 6r = 4 + -2 Combine like terms: 2 + -2 = 0 0 + 6r = 4 + -2 6r = 4 + -2 Combine like terms: 4 + -2 = 2 6r = 2 Divide each side by '6'. r = 0.3333333333 Simplifying r = 0.3333333333
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