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Simplifying 3r(-5) = 2(4r + -9) Reorder the terms for easier multiplication: 3 * -5r = 2(4r + -9) Multiply 3 * -5 -15r = 2(4r + -9) Reorder the terms: -15r = 2(-9 + 4r) -15r = (-9 * 2 + 4r * 2) -15r = (-18 + 8r) Solving -15r = -18 + 8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-8r' to each side of the equation. -15r + -8r = -18 + 8r + -8r Combine like terms: -15r + -8r = -23r -23r = -18 + 8r + -8r Combine like terms: 8r + -8r = 0 -23r = -18 + 0 -23r = -18 Divide each side by '-23'. r = 0.7826086957 Simplifying r = 0.7826086957
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