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Simplifying 400 = -20V Solving 400 = -20V Solving for variable 'V'. Move all terms containing V to the left, all other terms to the right. Add '20V' to each side of the equation. 400 + 20V = -20V + 20V Combine like terms: -20V + 20V = 0 400 + 20V = 0 Add '-400' to each side of the equation. 400 + -400 + 20V = 0 + -400 Combine like terms: 400 + -400 = 0 0 + 20V = 0 + -400 20V = 0 + -400 Combine like terms: 0 + -400 = -400 20V = -400 Divide each side by '20'. V = -20 Simplifying V = -20
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