zistoe0430
25.11.2020 •
Mathematics
Help! Thank you in advance!
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Ответ:
option 3
both (3, 2) and (2, -1) are solutions
Ответ:
C
Step-by-step explanation:
-3x + y = -7
use (3, 2) as plug ins for x and y
-3x + y = -7 (rewrite)
-3 x 3 + 2 = -7 (solve)
-3 x 3 = -9
-9 + 2 = -7
same with the other numbers (2, -1)
but i'm lazy
Ответ: