ghandiboy ghandiboy

03-02-2017
Mathematics

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X+2y =3 -x+y=6 elimination

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Lusifer Lusifer

03-02-2017

You can try using the formula y=mx+b

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03-02-2017

x=3-2y

plug that into the second equation

-(3-2y)+y=6
-3+2y=6
2y=6+3
2y=9
y=9/2

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