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Snowcat [4.5K]
2 years ago
13

18x - 77=1 X - 7y=-33

Mathematics
1 answer:
SIZIF [17.4K]2 years ago
4 0

Answer:

x=-33+7y

then putting value of x

18(-33+7y)-77=1

-594+126y-77=1

-671+126y=1

126y=670

y=670/126

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