anonymous
  • anonymous
4x + y = -1 3x + 2y = 8
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Are these two seperate equation?
anonymous
  • anonymous
I don't think so, I have to find the points for the graph.
anonymous
  • anonymous
Ok

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anonymous
  • anonymous
I have 4x = -1 - 4 (-1 - 4) + 2y = 8 So far but I don't know if I'm doing it right. Or if I am doing it right what to do after that.
anonymous
  • anonymous
So what we have here is : 4x + y = -1 3x + 2y = 8 So What i think you havta do is solve by elimation So to do this we have to do the following:
anonymous
  • anonymous
We multiply the equation by its coefiicant
anonymous
  • anonymous
So: -3(4x+y=-1) 4(3x+2y=8)
anonymous
  • anonymous
Can u Solve that?
anonymous
  • anonymous
I can try.
Mertsj
  • Mertsj
Here is a more sensible approach. From the first equation, y = -1-4x Replace y in the second equation with -1-4x
Mertsj
  • Mertsj
\[3x+2(-1-4x)=8\]
Mertsj
  • Mertsj
\[3x-2-8x=8\]
Mertsj
  • Mertsj
\[-5x=10\]
Mertsj
  • Mertsj
\[x=-2\]
Mertsj
  • Mertsj
\[y=-1-4x\]
Mertsj
  • Mertsj
\[y=-1-4(-2)=-1+8=7\]
Mertsj
  • Mertsj
Solution is (-2,7)
anonymous
  • anonymous
Could I email you the graphs I can choose from to see which one would be correct? and thank you!
anonymous
  • anonymous
Never Mind I think I know which one is right!
Mertsj
  • Mertsj
ok

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