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Simplifying (7x + 4xy + -9) + -1(-7x + 3xy + 7) = 0 Reorder the terms: (-9 + 7x + 4xy) + -1(-7x + 3xy + 7) = 0 Remove parenthesis around (-9 + 7x + 4xy) -9 + 7x + 4xy + -1(-7x + 3xy + 7) = 0 Reorder the terms: -9 + 7x + 4xy + -1(7 + -7x + 3xy) = 0 -9 + 7x + 4xy + (7 * -1 + -7x * -1 + 3xy * -1) = 0 -9 + 7x + 4xy + (-7 + 7x + -3xy) = 0 Reorder the terms: -9 + -7 + 7x + 7x + 4xy + -3xy = 0 Combine like terms: -9 + -7 = -16 -16 + 7x + 7x + 4xy + -3xy = 0 Combine like terms: 7x + 7x = 14x -16 + 14x + 4xy + -3xy = 0 Combine like terms: 4xy + -3xy = 1xy -16 + 14x + 1xy = 0 Solving -16 + 14x + 1xy = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 14x + 16 + 1xy = 0 + 16 Reorder the terms: -16 + 16 + 14x + 1xy = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 14x + 1xy = 0 + 16 14x + 1xy = 0 + 16 Combine like terms: 0 + 16 = 16 14x + 1xy = 16 Reorder the terms: -16 + 14x + 1xy = 16 + -16 Combine like terms: 16 + -16 = 0 -16 + 14x + 1xy = 0 The solution to this equation could not be determined.
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