21megoplin
11.02.2022 •
Mathematics
What is the result of multiplying the first equation by −3 and adding to the second equation?
5x−2y=−2
3x+y=12
A: -10x+8y=15
B: 12x+7y=18
C: -12x+7y=18
D: 8x-y=10
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Ответ:
The answer is a _10×+8y=15
Ответ: