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a) -y+8x-z-2x dla x=-2 y=6 z=-3
-y+6x-z=-6-12+3=-15
b) -8y-4z+x-y-2z+1 dla x= -0.5 y=-1 z=2
-9y+x-6z+1=9-0,5-12+1=-2.5
2.
3+2x+2x+y+2x+5=6x+y+8=12+3+5=20
2+x+1+2y+x+2x+y=4x+3y+3=8+9+3=20
dla y= 3
dla= x=2
prosze