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Simplifying 5(3r + -2) + -4(2r + -3) = 3(1 + -2r) Reorder the terms: 5(-2 + 3r) + -4(2r + -3) = 3(1 + -2r) (-2 * 5 + 3r * 5) + -4(2r + -3) = 3(1 + -2r) (-10 + 15r) + -4(2r + -3) = 3(1 + -2r) Reorder the terms: -10 + 15r + -4(-3 + 2r) = 3(1 + -2r) -10 + 15r + (-3 * -4 + 2r * -4) = 3(1 + -2r) -10 + 15r + (12 + -8r) = 3(1 + -2r) Reorder the terms: -10 + 12 + 15r + -8r = 3(1 + -2r) Combine like terms: -10 + 12 = 2 2 + 15r + -8r = 3(1 + -2r) Combine like terms: 15r + -8r = 7r 2 + 7r = 3(1 + -2r) 2 + 7r = (1 * 3 + -2r * 3) 2 + 7r = (3 + -6r) Solving 2 + 7r = 3 + -6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '6r' to each side of the equation. 2 + 7r + 6r = 3 + -6r + 6r Combine like terms: 7r + 6r = 13r 2 + 13r = 3 + -6r + 6r Combine like terms: -6r + 6r = 0 2 + 13r = 3 + 0 2 + 13r = 3 Add '-2' to each side of the equation. 2 + -2 + 13r = 3 + -2 Combine like terms: 2 + -2 = 0 0 + 13r = 3 + -2 13r = 3 + -2 Combine like terms: 3 + -2 = 1 13r = 1 Divide each side by '13'. r = 0.07692307692 Simplifying r = 0.07692307692
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