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If z=x+yi and 3x+(3x−y)i=4−6i, then z=?

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If z=x+yi and 3x+(3x−y)i=4−6i, then z=?

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Answer: 4/3 + i10

Z = x + iy and 3x + (3x - y)i = 4 - 6i 

3x = 4, 3x - y = 6 

∴ z = 4/3 + i10 

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