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Simplifying 7r + 3 = r + -1 Reorder the terms: 3 + 7r = r + -1 Reorder the terms: 3 + 7r = -1 + r Solving 3 + 7r = -1 + 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. 3 + 7r + -1r = -1 + r + -1r Combine like terms: 7r + -1r = 6r 3 + 6r = -1 + r + -1r Combine like terms: r + -1r = 0 3 + 6r = -1 + 0 3 + 6r = -1 Add '-3' to each side of the equation. 3 + -3 + 6r = -1 + -3 Combine like terms: 3 + -3 = 0 0 + 6r = -1 + -3 6r = -1 + -3 Combine like terms: -1 + -3 = -4 6r = -4 Divide each side by '6'. r = -0.6666666667 Simplifying r = -0.6666666667
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