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Simplifying (R + -3)(r + 9) = 89 Reorder the terms: (-3 + R)(r + 9) = 89 Reorder the terms: (-3 + R)(9 + r) = 89 Multiply (-3 + R) * (9 + r) (-3(9 + r) + R(9 + r)) = 89 ((9 * -3 + r * -3) + R(9 + r)) = 89 ((-27 + -3r) + R(9 + r)) = 89 (-27 + -3r + (9 * R + r * R)) = 89 (-27 + -3r + (9R + rR)) = 89 Reorder the terms: (-27 + 9R + -3r + rR) = 89 (-27 + 9R + -3r + rR) = 89 Solving -27 + 9R + -3r + rR = 89 Solving for variable 'R'. Move all terms containing R to the left, all other terms to the right. Add '27' to each side of the equation. -27 + 9R + -3r + 27 + rR = 89 + 27 Reorder the terms: -27 + 27 + 9R + -3r + rR = 89 + 27 Combine like terms: -27 + 27 = 0 0 + 9R + -3r + rR = 89 + 27 9R + -3r + rR = 89 + 27 Combine like terms: 89 + 27 = 116 9R + -3r + rR = 116 Add '3r' to each side of the equation. 9R + -3r + 3r + rR = 116 + 3r Combine like terms: -3r + 3r = 0 9R + 0 + rR = 116 + 3r 9R + rR = 116 + 3r Reorder the terms: -116 + 9R + -3r + rR = 116 + 3r + -116 + -3r Reorder the terms: -116 + 9R + -3r + rR = 116 + -116 + 3r + -3r Combine like terms: 116 + -116 = 0 -116 + 9R + -3r + rR = 0 + 3r + -3r -116 + 9R + -3r + rR = 3r + -3r Combine like terms: 3r + -3r = 0 -116 + 9R + -3r + rR = 0 The solution to this equation could not be determined.
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