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Simplifying (2x2 + 7) + -1(-4y2 + 7) = 0 Reorder the terms: (7 + 2x2) + -1(-4y2 + 7) = 0 Remove parenthesis around (7 + 2x2) 7 + 2x2 + -1(-4y2 + 7) = 0 Reorder the terms: 7 + 2x2 + -1(7 + -4y2) = 0 7 + 2x2 + (7 * -1 + -4y2 * -1) = 0 7 + 2x2 + (-7 + 4y2) = 0 Reorder the terms: 7 + -7 + 2x2 + 4y2 = 0 Combine like terms: 7 + -7 = 0 0 + 2x2 + 4y2 = 0 2x2 + 4y2 = 0 Solving 2x2 + 4y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4y2' to each side of the equation. 2x2 + 4y2 + -4y2 = 0 + -4y2 Combine like terms: 4y2 + -4y2 = 0 2x2 + 0 = 0 + -4y2 2x2 = 0 + -4y2 Remove the zero: 2x2 = -4y2 Divide each side by '2'. x2 = -2y2 Simplifying x2 = -2y2 Combine like terms: -2y2 + 2y2 = 0 x2 + 2y2 = 0 The solution to this equation could not be determined.
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