a) y= 2x-1
3+x+2x-1=0
y=2x-1
3x=-2
x=-2/3
y=-1 i 1/3 - 1
y= -2 i 2/3
b)2x-4 + 4y - 12 +2 =0
x=y-2
2y-4 +4y -10=0
6y= 14
y=3/7
x=-11/7
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a) y= 2x-1
3+x+2x-1=0
y=2x-1
3x=-2
x=-2/3
y=-1 i 1/3 - 1
x=-2/3
y= -2 i 2/3
b)2x-4 + 4y - 12 +2 =0
x=y-2
2y-4 +4y -10=0
x=y-2
6y= 14
y=3/7
x=-11/7