francisco2001
22.09.2019 •
Mathematics
Solve using elimination.
3x + 2y = -15
-x – 2y = -3
Solved
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Ответ:
x=-9
Ответ:
-x – 2y = -3
add
2x = -18
x = -9
3x + 2y = -15
3(-9) +2y = -15
-27 + 2y = -15
2y = -15 + 27
2y = 12
y = 6
answer (-9, 6)
Ответ:
43 plants
Step-by-step explanation: