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