Rozwiąż: ( x + y ) + ( 2x - y ) - ( x - 2y ) PROSZĘ POMÓŻCIE MI !
( x + y ) + ( 2x - y ) - ( x - 2y ) = x+y+2x-y-x+2y = 2x+2y
( x + y ) + ( 2x - y ) - ( x - 2y ) = x+y+2x-y-x+2y=redukujemy=2x+2y
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( x + y ) + ( 2x - y ) - ( x - 2y ) = x+y+2x-y-x+2y = 2x+2y
( x + y ) + ( 2x - y ) - ( x - 2y ) = x+y+2x-y-x+2y=redukujemy=2x+2y