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Simplifying -2 = r + -1(-17) Multiply -1 * -17 -2 = r + 17 Reorder the terms: -2 = 17 + r Solving -2 = 17 + 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. -2 + -1r = 17 + r + -1r Combine like terms: r + -1r = 0 -2 + -1r = 17 + 0 -2 + -1r = 17 Add '2' to each side of the equation. -2 + 2 + -1r = 17 + 2 Combine like terms: -2 + 2 = 0 0 + -1r = 17 + 2 -1r = 17 + 2 Combine like terms: 17 + 2 = 19 -1r = 19 Divide each side by '-1'. r = -19 Simplifying r = -19
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