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  • 09-09-2017
  • Mathematics
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7 + (x + 2y)i = x + 3i where x and y are real numbers

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Аноним Аноним
  • 09-09-2017
7 + (x + 2y)i = x + 3i

Equating the real and imaginary parts of the expression.

7 = x                     x + 2y = 3

                             7 + 2y = 3

                             2y = 3 - 7

                             2y = - 4

                              y = [tex] \frac{-4}{2} [/tex]

                              y = -2

Hence, x is 7 and y is -2.
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