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1x + 10y= 4,60 /*-4
4x + 6y=4,80
-4x -40y=-18,40
4x-4x+6y-40y=4,80-18,40
-34y=-13,6
y=0,40
4x+6*0,40= 4,80
y=0,40
4x=2,40
y=0,40
x=0,60
y=0,40