Zapisz w jak najprostszej postaci. Redukcja wyrażeń algebraicznych. e) ( 5x - 7y) - (3y - 7x ) = f) - ( a - 2b) - 2(b- 2a) = g) 3(x - 2y) - 2(y - 3x)=
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e) (5x-7y)-(3y-7x)=5x-7y-3y+7x=12x-10y
f)-(a-2b)-2(b-2a)=-a+2b-2b+4a=3a
g)3(x-2y)-2(y-3x)=3x-6y-2y+6x=9x-8y
e) ( 5x - 7y) - (3y - 7x ) =5x-7y-3y+7x=12x-10y
f) - ( a - 2b) - 2(b- 2a)=-a+2b-2b+4a=3a
g) 3(x - 2y) - 2(y - 3x)= 3x-6y - 2y+6x=9x-8y