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20.08.2019 •
Mathematics
3(6-3i) - 7(4+2i)
can someone solve and explain this
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Ответ:
Ответ:
-2x+8=x-1
add 2x to both sides
8=3x-1
add 1
9=3x
divide 3
3=x
sub
y=x-1
y=3-1
y=2
(x,y)
(3,2)