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Simplifying 2(3 + -2r) = 3(r + -7) (3 * 2 + -2r * 2) = 3(r + -7) (6 + -4r) = 3(r + -7) Reorder the terms: 6 + -4r = 3(-7 + r) 6 + -4r = (-7 * 3 + r * 3) 6 + -4r = (-21 + 3r) Solving 6 + -4r = -21 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. 6 + -4r + -3r = -21 + 3r + -3r Combine like terms: -4r + -3r = -7r 6 + -7r = -21 + 3r + -3r Combine like terms: 3r + -3r = 0 6 + -7r = -21 + 0 6 + -7r = -21 Add '-6' to each side of the equation. 6 + -6 + -7r = -21 + -6 Combine like terms: 6 + -6 = 0 0 + -7r = -21 + -6 -7r = -21 + -6 Combine like terms: -21 + -6 = -27 -7r = -27 Divide each side by '-7'. r = 3.857142857 Simplifying r = 3.857142857
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