Me ajudem ;
x+y = 2
x-y =4
b)
3x+2y= -8
2x -3y -1
c )
4x-2y =8
y= 2x -4
d)
4x -2y =8
y= 2x -4
e)
x+2y =-4
x -1 y =6
_
2
x+y = 2
x-y =4
b)
3x+2y= -8
2x -3y -1
c )
4x-2y =8
y= 2x -4
d)
4x -2y =8
y= 2x -4
e)
x+2y =-4
x -1 y =6
_
2
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