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Simplifying 6(2r + -1) = 3r + -2(r + 2) Reorder the terms: 6(-1 + 2r) = 3r + -2(r + 2) (-1 * 6 + 2r * 6) = 3r + -2(r + 2) (-6 + 12r) = 3r + -2(r + 2) Reorder the terms: -6 + 12r = 3r + -2(2 + r) -6 + 12r = 3r + (2 * -2 + r * -2) -6 + 12r = 3r + (-4 + -2r) Reorder the terms: -6 + 12r = -4 + 3r + -2r Combine like terms: 3r + -2r = 1r -6 + 12r = -4 + 1r Solving -6 + 12r = -4 + 1r 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. -6 + 12r + -1r = -4 + 1r + -1r Combine like terms: 12r + -1r = 11r -6 + 11r = -4 + 1r + -1r Combine like terms: 1r + -1r = 0 -6 + 11r = -4 + 0 -6 + 11r = -4 Add '6' to each side of the equation. -6 + 6 + 11r = -4 + 6 Combine like terms: -6 + 6 = 0 0 + 11r = -4 + 6 11r = -4 + 6 Combine like terms: -4 + 6 = 2 11r = 2 Divide each side by '11'. r = 0.1818181818 Simplifying r = 0.1818181818
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