Odpowiedzi

2010-03-07T14:51:19+01:00
A) 3(x-3)=3x-9 , 5(y+z)=5y+5z , 4(3x-y)=12x-4y, 3(4a-c)=12a-3c -2(7-4n) =-14+8n
b)1/2(4z+2)=2z+1, -1/3(6b-3)=-2b+1, 0,2(x-5y)=0.2x-1y 3(1/3a+1)=a+3