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Simplifying -3(4r + -2) = -30 Reorder the terms: -3(-2 + 4r) = -30 (-2 * -3 + 4r * -3) = -30 (6 + -12r) = -30 Solving 6 + -12r = -30 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 + -12r = -30 + -6 Combine like terms: 6 + -6 = 0 0 + -12r = -30 + -6 -12r = -30 + -6 Combine like terms: -30 + -6 = -36 -12r = -36 Divide each side by '-12'. r = 3 Simplifying r = 3
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