what is the answer for equation 2x+5y=7
2x+ y= 1
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2x+5y=7
2x+ y =1
(-) (-) (-)
_______
0+4y=6
y=3/2. x=1-y/2
x=1-3/2/2
x=-2/3
2x+ y =1
(-) (-) (-)
_______
0+4y=6
y=3/2. x=1-y/2
x=1-3/2/2
x=-2/3
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