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Simplifying 4 + 4r = -2(3 + -1r) 4 + 4r = (3 * -2 + -1r * -2) 4 + 4r = (-6 + 2r) Solving 4 + 4r = -6 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. 4 + 4r + -2r = -6 + 2r + -2r Combine like terms: 4r + -2r = 2r 4 + 2r = -6 + 2r + -2r Combine like terms: 2r + -2r = 0 4 + 2r = -6 + 0 4 + 2r = -6 Add '-4' to each side of the equation. 4 + -4 + 2r = -6 + -4 Combine like terms: 4 + -4 = 0 0 + 2r = -6 + -4 2r = -6 + -4 Combine like terms: -6 + -4 = -10 2r = -10 Divide each side by '2'. r = -5 Simplifying r = -5
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