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Simplifying 4x + -28 + xy + -7y = 0 Reorder the terms: -28 + 4x + xy + -7y = 0 Solving -28 + 4x + xy + -7y = 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 + 4x + xy + 28 + -7y = 0 + 28 Reorder the terms: -28 + 28 + 4x + xy + -7y = 0 + 28 Combine like terms: -28 + 28 = 0 0 + 4x + xy + -7y = 0 + 28 4x + xy + -7y = 0 + 28 Combine like terms: 0 + 28 = 28 4x + xy + -7y = 28 Add '7y' to each side of the equation. 4x + xy + -7y + 7y = 28 + 7y Combine like terms: -7y + 7y = 0 4x + xy + 0 = 28 + 7y 4x + xy = 28 + 7y Reorder the terms: -28 + 4x + xy + -7y = 28 + 7y + -28 + -7y Reorder the terms: -28 + 4x + xy + -7y = 28 + -28 + 7y + -7y Combine like terms: 28 + -28 = 0 -28 + 4x + xy + -7y = 0 + 7y + -7y -28 + 4x + xy + -7y = 7y + -7y Combine like terms: 7y + -7y = 0 -28 + 4x + xy + -7y = 0 The solution to this equation could not be determined.
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