krystalhurst97
18.02.2020 •
Mathematics
Solve the system of linear equations using elimination.
−2x − y = 3
−9x − y = 17
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Ответ:
-2×-y=3-9×-y=17
=2×+9×=1y+1y=17+3
11×=2y=20
11=y=20÷2
11y=10
y=10/11
Ответ:
The answer is A
Step-by-step explanation: