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Simplifying xy + 7x + 4y + 28 = 0 Reorder the terms: 28 + 7x + xy + 4y = 0 Solving 28 + 7x + xy + 4y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + 7x + xy + -28 + 4y = 0 + -28 Reorder the terms: 28 + -28 + 7x + xy + 4y = 0 + -28 Combine like terms: 28 + -28 = 0 0 + 7x + xy + 4y = 0 + -28 7x + xy + 4y = 0 + -28 Combine like terms: 0 + -28 = -28 7x + xy + 4y = -28 Add '-4y' to each side of the equation. 7x + xy + 4y + -4y = -28 + -4y Combine like terms: 4y + -4y = 0 7x + xy + 0 = -28 + -4y 7x + xy = -28 + -4y Reorder the terms: 28 + 7x + xy + 4y = -28 + -4y + 28 + 4y Reorder the terms: 28 + 7x + xy + 4y = -28 + 28 + -4y + 4y Combine like terms: -28 + 28 = 0 28 + 7x + xy + 4y = 0 + -4y + 4y 28 + 7x + xy + 4y = -4y + 4y Combine like terms: -4y + 4y = 0 28 + 7x + xy + 4y = 0 The solution to this equation could not be determined.
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