przekształć wyrażenia
a) 2(5a-7b-3)=10a-14b-6
b) -3(-7x-14y)=21x+42y
c) -8(-4x+2y-8)=
d)(6x-4y):2=
e) (-14a-6b+8):(-2)=
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1) 10a-14b-6=10a-14b-6
2) 21x+42y
3) 32x-16y+64
4)6x-4y * 1/2
5)14a+6b-8:2=14a+6b-8:2
c)-8(-4x+2y-8)= 32x-16y+64
d)(6x-4y):2= 3x-2y
e) (-14a-6b+8):(-2)= 7a+3b-4