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Solve an equation

  • Thread starter Ry122
  • Start date
565
2
Given z = x + iy
find x and y if
1 + z = 3 - 2i
I tried subbing x+iy into z and solving but all i got was x = y.
The answer in the back is x=2 y=-2
 

Answers and Replies

Dick
Science Advisor
Homework Helper
26,258
618
Separate 1+(x+iy)=3-2i into real and imaginary parts. They have to be equal separately.
 
565
2
so is it just x+iy=2-2i ?
 
1,631
4
so is it just x+iy=2-2i ?
yeah and from here x=2, y=-2, because like Dick said the real part and the imaginary part on both sides has to be equal. Like
[tex]a+bi=c+di<=>a=c, \ \ and \ \ b=d[/tex]
 

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