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Simplifying 2x2 + ax + -1 = 0 Reorder the terms: -1 + ax + 2x2 = 0 Solving -1 + ax + 2x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1' to each side of the equation. -1 + ax + 1 + 2x2 = 0 + 1 Reorder the terms: -1 + 1 + ax + 2x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + ax + 2x2 = 0 + 1 ax + 2x2 = 0 + 1 Combine like terms: 0 + 1 = 1 ax + 2x2 = 1 Add '-2x2' to each side of the equation. ax + 2x2 + -2x2 = 1 + -2x2 Combine like terms: 2x2 + -2x2 = 0 ax + 0 = 1 + -2x2 ax = 1 + -2x2 Divide each side by 'x'. a = x-1 + -2x Simplifying a = x-1 + -2x
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