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jasperc2002owy5b5
04.12.2020 •
Mathematics
HELP PLEASE I NEED IT RN
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Ответ:
maybe a
Step-by-step explanation:
sorry if this is wrong, lol
Ответ:
II: 12x-5y+38=0
start by eliminating x by multiplying the first equation by 3 and subtracting II:
3*(4x-9y-2)-(12-5y+38)=3*(0)-0
12x-27y-6-12x+5y-38=0
-22y-44=0
-44=22y
-2=y
-> insert y=-2 in I:
4x-9*(-2)-2=0
4x+18-2=0
4x+16=0
4x=-16
x=-4
so the solution is y=-2 and x=-4