DOPROWADŹ DO NAJPROSTRZEJ POSTACI PODANE WYRAŻENIA :
a) 7(x+2y-3z)+4(2x-3y-5z) =
b)-3(-2a-4b - c)- 6 (a-2b-6c)=
c) -5 (2x +2y - 6z)- (x-7y-3z) =
d) -3(2x-3y)+5 (x+2y)-2( 3y-x)=
e) 5 ( b-2a)+ 3 (a-3b)-4(2a-4b)=
f) -7(2a+3b)-9 (a-2b)-3 (3a+4b) =
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7(x+2y-3z)+4(2x-3y-5z) =
7x+14y-21x+8x-12y-35z =
-6x-2y-35z
-3(-2a-4b - c)- 6 (a-2b-6c)=
6a+12b+3c-6a+12b+36c=
24b+39c
-5 (2x +2y - 6z)- (x-7y-3z) =
-10x-10y+30z-z+7y+3z=
-3+32z
a) 7x+14y-21z+8x-12y-20z=15x+2y-41z
b) 6a+12b+3c-6a+12b+36c=24b+39c
c) -10x-10y+30z-x+7y+3z=-11x-3y+33z
d) -6x+9y+5x+10y-6y+2x=x+19y
e) 5b-10a+3a-9b-8a+16b=-15a+12b
f)-14a-21b-9a+18b-9a-12b=-32a-15b