Rozwiąż podane działania.
a) 3(2a-7)=
b) (-d+3)x(-1)=
c) (8c+2):2=
d) -\frac{1}{2}(5b-1)=
a) 3(2a-7)=6a-21
b) (-d+3)*(-1)=d-3
c) (8c+2):2= 4x+1
d) -½(5b-1)=-2½b+½
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a) 3(2a-7)=6a-21
b) (-d+3)*(-1)=d-3
c) (8c+2):2= 4x+1
d) -½(5b-1)=-2½b+½