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Simplifying 7x + -1y(-4x + -15) = -7 Reorder the terms: 7x + -1y(-15 + -4x) = -7 7x + (-15 * -1y + -4x * -1y) = -7 Reorder the terms: 7x + (4xy + 15y) = -7 7x + (4xy + 15y) = -7 Solving 7x + 4xy + 15y = -7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15y' to each side of the equation. 7x + 4xy + 15y + -15y = -7 + -15y Combine like terms: 15y + -15y = 0 7x + 4xy + 0 = -7 + -15y 7x + 4xy = -7 + -15y Reorder the terms: 7 + 7x + 4xy + 15y = -7 + -15y + 7 + 15y Reorder the terms: 7 + 7x + 4xy + 15y = -7 + 7 + -15y + 15y Combine like terms: -7 + 7 = 0 7 + 7x + 4xy + 15y = 0 + -15y + 15y 7 + 7x + 4xy + 15y = -15y + 15y Combine like terms: -15y + 15y = 0 7 + 7x + 4xy + 15y = 0 The solution to this equation could not be determined.
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