madisongibson714
04.03.2021 •
Mathematics
(-4x - 7.5 = 3312.5) + (4x + 4y = 2000)
(please im in a test rn)
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Ответ:
y= 1330
Step-by-step explanation:
it might be wrong but
-4x -7.5 = 3312.5
4x +4y = 2000 (x cancels out)
4y -7.5 = 5312.5
4y = 5320
y= 1330
Ответ:
3a) 54/99
3b) 257/999
Hope this'll help you!