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Simplifying 21xy + 7y + -12x + -4 = 0 Reorder the terms: -4 + -12x + 21xy + 7y = 0 Solving -4 + -12x + 21xy + 7y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + -12x + 21xy + 4 + 7y = 0 + 4 Reorder the terms: -4 + 4 + -12x + 21xy + 7y = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -12x + 21xy + 7y = 0 + 4 -12x + 21xy + 7y = 0 + 4 Combine like terms: 0 + 4 = 4 -12x + 21xy + 7y = 4 Add '-7y' to each side of the equation. -12x + 21xy + 7y + -7y = 4 + -7y Combine like terms: 7y + -7y = 0 -12x + 21xy + 0 = 4 + -7y -12x + 21xy = 4 + -7y Reorder the terms: -4 + -12x + 21xy + 7y = 4 + -7y + -4 + 7y Reorder the terms: -4 + -12x + 21xy + 7y = 4 + -4 + -7y + 7y Combine like terms: 4 + -4 = 0 -4 + -12x + 21xy + 7y = 0 + -7y + 7y -4 + -12x + 21xy + 7y = -7y + 7y Combine like terms: -7y + 7y = 0 -4 + -12x + 21xy + 7y = 0 The solution to this equation could not be determined.
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