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DIA [1.3K]
3 years ago
5

Subtract (2+8i)-(7+2i)

Mathematics
1 answer:
Mkey [24]3 years ago
3 0
2 - 7 = -5
8i - 2i = 6i

-5 + 6i is your answer

hope this helps
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Hello,

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\left\{\begin{array}{ccc}2x-y&=&7\\-2x+3y&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}2y&=&16\\-2x+3y&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&8\\-2x+3*8&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}x&=&7.5\\y&=&8\\\end{array} \right.\\\\

Answer C

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