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Simplifying -2(r + 3) = -37 Reorder the terms: -2(3 + r) = -37 (3 * -2 + r * -2) = -37 (-6 + -2r) = -37 Solving -6 + -2r = -37 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -2r = -37 + 6 Combine like terms: -6 + 6 = 0 0 + -2r = -37 + 6 -2r = -37 + 6 Combine like terms: -37 + 6 = -31 -2r = -31 Divide each side by '-2'. r = 15.5 Simplifying r = 15.5
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