ryndersava
26.07.2019 •
Mathematics
I’m having trouble, can someone ? -1/3(n+15)=-2
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Ответ:
*Divide -1/3 on both sides
(n+15)=-2 / (-1/3)
n+15=6
*Subtract 15 from both sides
n=6-15
n=-9
Ответ:
18i-6y(i)^2=20-6i
18i+6y=20-6i
24i-20=-6y
y=20-24i/6