3 years ago

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

Mathematics

1 answer:

SIZIF [17.4K]3 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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