coliver15
25.05.2021 •
Mathematics
PLEASE HELP. very urgent, what’s the answer
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Ответ:
3x+8y=-17. |x9|27x+72y=-153
-
-81y=162
y=-2
9x-3y=3
9x-3(-2)=3
9x+6=3
9x=3-6
x=-3/9
x=-⅓
x=-⅓
y=-2