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Simplifying xy + 7x + 9y + 63 = 0 Reorder the terms: 63 + 7x + xy + 9y = 0 Solving 63 + 7x + xy + 9y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-63' to each side of the equation. 63 + 7x + xy + -63 + 9y = 0 + -63 Reorder the terms: 63 + -63 + 7x + xy + 9y = 0 + -63 Combine like terms: 63 + -63 = 0 0 + 7x + xy + 9y = 0 + -63 7x + xy + 9y = 0 + -63 Combine like terms: 0 + -63 = -63 7x + xy + 9y = -63 Add '-9y' to each side of the equation. 7x + xy + 9y + -9y = -63 + -9y Combine like terms: 9y + -9y = 0 7x + xy + 0 = -63 + -9y 7x + xy = -63 + -9y Reorder the terms: 63 + 7x + xy + 9y = -63 + -9y + 63 + 9y Reorder the terms: 63 + 7x + xy + 9y = -63 + 63 + -9y + 9y Combine like terms: -63 + 63 = 0 63 + 7x + xy + 9y = 0 + -9y + 9y 63 + 7x + xy + 9y = -9y + 9y Combine like terms: -9y + 9y = 0 63 + 7x + xy + 9y = 0 The solution to this equation could not be determined.
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