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Simplifying -91 = 7r Solving -91 = 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. -91 + -7r = 7r + -7r Combine like terms: 7r + -7r = 0 -91 + -7r = 0 Add '91' to each side of the equation. -91 + 91 + -7r = 0 + 91 Combine like terms: -91 + 91 = 0 0 + -7r = 0 + 91 -7r = 0 + 91 Combine like terms: 0 + 91 = 91 -7r = 91 Divide each side by '-7'. r = -13 Simplifying r = -13
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