doaazam2136 doaazam2136

21-05-2018
Mathematics

contestada

7+5i+13=8
Plz answer this asap

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AriCita48 AriCita48

21-05-2018

7+13= 20
20+5i= 8
8-20= -12
-12= 5i
= -12/5 or as a decimial -2.4

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SINAZEUS SINAZEUS

21-05-2018

the answer is -12/5
[tex]7 + 5i + 13 = 8 \\ 5i = 8 - 7 - 13 \\ 5i = - 12 \\ i = - \frac{12}{5} [/tex]

good luck

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