0,6x+2y-12x+6y
8y-11,4x=8*4-57=32-57=-25
2(0,3x+y)-6(2x-y)=
0,6x+2y-12x+6y=
-11,4x+8y=-11,4*5+8*4=-57+32=-25
0,6x+2y-12x+6y
8y-11,4x=8*4-57=32-57=-25
2(0,3x+y)-6(2x-y)=
0,6x+2y-12x+6y=
-11,4x+8y=-11,4*5+8*4=-57+32=-25