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OpenStudy (anonymous):
please help
OpenStudy (mrnood):
First multiply both sides of the top equation by 2
Post your new equation here
OpenStudy (anonymous):
which equation do i multiply by 2
OpenStudy (mrnood):
What I said above
OpenStudy (anonymous):
6x=2y-8
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OpenStudy (mrnood):
Ok that's good
Now add that equation to the SECOND equation in oyur question
OpenStudy (anonymous):
12x+4y-4
OpenStudy (anonymous):
12x=4x-4
OpenStudy (anonymous):
12x=4y-4 sorry
OpenStudy (mrnood):
No - that is not correct.
6x=2y-8
2y-6x=12
When you ADD them the x term will disappear
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OpenStudy (anonymous):
Ok so that would be 4y=4
OpenStudy (anonymous):
Y=1
OpenStudy (mrnood):
No that is not correct- however I now see a complication to this
OpenStudy (mrnood):
If you re-arrange the original equations:
y=3x+4
y=3x+6
You can see that both lines have the same slope (=3)
Therefore they never intersect so there is no solution to these as simultaneous equations
OpenStudy (anonymous):
And what is that
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