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frozen [14]
3 years ago
12

I need help to please

Mathematics
1 answer:
Blababa [14]3 years ago
7 0
Since y=7x we can replace the y in the second equation with 7x

-5x+14x=9

x=1

Now plug in to get 7 for y, since 7x=y


Answer: x=1, y=7
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