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Simplifying 3 + -1r = -7 + -6r Solving 3 + -1r = -7 + -6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6r' to each side of the equation. 3 + -1r + 6r = -7 + -6r + 6r Combine like terms: -1r + 6r = 5r 3 + 5r = -7 + -6r + 6r Combine like terms: -6r + 6r = 0 3 + 5r = -7 + 0 3 + 5r = -7 Add '-3' to each side of the equation. 3 + -3 + 5r = -7 + -3 Combine like terms: 3 + -3 = 0 0 + 5r = -7 + -3 5r = -7 + -3 Combine like terms: -7 + -3 = -10 5r = -10 Divide each side by '5'. r = -2 Simplifying r = -2
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