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Simplifying -20i + -21j = 0 Solving -20i + -21j = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '21j' to each side of the equation. -20i + -21j + 21j = 0 + 21j Combine like terms: -21j + 21j = 0 -20i + 0 = 0 + 21j -20i = 0 + 21j Remove the zero: -20i = 21j Divide each side by '-20'. i = -1.05j Simplifying i = -1.05j
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