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Simplifying 5r + -8(r + 7) = 2 Reorder the terms: 5r + -8(7 + r) = 2 5r + (7 * -8 + r * -8) = 2 5r + (-56 + -8r) = 2 Reorder the terms: -56 + 5r + -8r = 2 Combine like terms: 5r + -8r = -3r -56 + -3r = 2 Solving -56 + -3r = 2 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '56' to each side of the equation. -56 + 56 + -3r = 2 + 56 Combine like terms: -56 + 56 = 0 0 + -3r = 2 + 56 -3r = 2 + 56 Combine like terms: 2 + 56 = 58 -3r = 58 Divide each side by '-3'. r = -19.33333333 Simplifying r = -19.33333333
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