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Simplifying (x + 3)(3.5X + 7) = 86 Reorder the terms: (3 + x)(3.5X + 7) = 86 Reorder the terms: (3 + x)(7 + 3.5X) = 86 Multiply (3 + x) * (7 + 3.5X) (3(7 + 3.5X) + x(7 + 3.5X)) = 86 ((7 * 3 + 3.5X * 3) + x(7 + 3.5X)) = 86 ((21 + 10.5X) + x(7 + 3.5X)) = 86 (21 + 10.5X + (7 * x + 3.5X * x)) = 86 (21 + 10.5X + (7x + 3.5xX)) = 86 (21 + 10.5X + 7x + 3.5xX) = 86 Solving 21 + 10.5X + 7x + 3.5xX = 86 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + 10.5X + 7x + -21 + 3.5xX = 86 + -21 Reorder the terms: 21 + -21 + 10.5X + 7x + 3.5xX = 86 + -21 Combine like terms: 21 + -21 = 0 0 + 10.5X + 7x + 3.5xX = 86 + -21 10.5X + 7x + 3.5xX = 86 + -21 Combine like terms: 86 + -21 = 65 10.5X + 7x + 3.5xX = 65 Add '-7x' to each side of the equation. 10.5X + 7x + -7x + 3.5xX = 65 + -7x Combine like terms: 7x + -7x = 0 10.5X + 0 + 3.5xX = 65 + -7x 10.5X + 3.5xX = 65 + -7x Reorder the terms: -65 + 10.5X + 7x + 3.5xX = 65 + -7x + -65 + 7x Reorder the terms: -65 + 10.5X + 7x + 3.5xX = 65 + -65 + -7x + 7x Combine like terms: 65 + -65 = 0 -65 + 10.5X + 7x + 3.5xX = 0 + -7x + 7x -65 + 10.5X + 7x + 3.5xX = -7x + 7x Combine like terms: -7x + 7x = 0 -65 + 10.5X + 7x + 3.5xX = 0 The solution to this equation could not be determined.
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