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Simplifying 4 + -2x + -42y + 21xy = 0 Reorder the terms: 4 + -2x + 21xy + -42y = 0 Solving 4 + -2x + 21xy + -42y = 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 + -2x + 21xy + -4 + -42y = 0 + -4 Reorder the terms: 4 + -4 + -2x + 21xy + -42y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -2x + 21xy + -42y = 0 + -4 -2x + 21xy + -42y = 0 + -4 Combine like terms: 0 + -4 = -4 -2x + 21xy + -42y = -4 Add '42y' to each side of the equation. -2x + 21xy + -42y + 42y = -4 + 42y Combine like terms: -42y + 42y = 0 -2x + 21xy + 0 = -4 + 42y -2x + 21xy = -4 + 42y Reorder the terms: 4 + -2x + 21xy + -42y = -4 + 42y + 4 + -42y Reorder the terms: 4 + -2x + 21xy + -42y = -4 + 4 + 42y + -42y Combine like terms: -4 + 4 = 0 4 + -2x + 21xy + -42y = 0 + 42y + -42y 4 + -2x + 21xy + -42y = 42y + -42y Combine like terms: 42y + -42y = 0 4 + -2x + 21xy + -42y = 0 The solution to this equation could not be determined.
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