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Simplifying -11 = 7 + 3r Solving -11 = 7 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. -11 + -3r = 7 + 3r + -3r Combine like terms: 3r + -3r = 0 -11 + -3r = 7 + 0 -11 + -3r = 7 Add '11' to each side of the equation. -11 + 11 + -3r = 7 + 11 Combine like terms: -11 + 11 = 0 0 + -3r = 7 + 11 -3r = 7 + 11 Combine like terms: 7 + 11 = 18 -3r = 18 Divide each side by '-3'. r = -6 Simplifying r = -6
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