ghandiboy
ghandiboy
03-02-2017
Mathematics
contestada
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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kariri
kariri
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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