2022rickskyye
18.12.2019 •
Mathematics
New era baseball cap factory made 315 caps last week
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Ответ:
Ответ:
multiplying this equation by 2
10x + 4y = 14 ...(A)
-2x + 6y = 9
multiplying this equation by 5
-10x + 30y = 45 ... (B)
Add (A) and (B),
10x-10x + 4y +30y = 14+45
0 + 34y = 59
y = 59/34
y = 1.7