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- anonymous

8x-y=30
7x=8x-66

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- anonymous

8x-y=30
7x=8x-66

- jamiebookeater

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- myininaya

Is your second equation right?

- anonymous

yes

- myininaya

Ok just making sure
so you can actually solve he second equation for x

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- cwrw238

from 2nd equation
x = 66
plug this into first
8(66) - 30 = y
y = 498
x=66,y=498

- myininaya

\[7x-8x=-66\]
\[-1x=-66 => x=66\]

- myininaya

lol cwrw already got it

- anonymous

That is what I came up with to but the test answer was different

- myininaya

Maybe it was a type-o i bet

- myininaya

that one x is suppose to be a y

- myininaya

i wonder if we pretend it was a y if we could find the solution it was looking for

- anonymous

maybe
\[7x=8y-66\] or
\[7y=8x-66\]

- anonymous

The answer was (3,-6)

- Hero

deanmary, you probably typed the equation wrong.

- myininaya

He said it was right. It might have been a type-o on the test. That is always possible.
You should totally tell your teacher deanmary so you don't get penalized for it.

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