Question

1. Daca X +Y +Z =17 ,calculati:
   a) 5•X+5•Y+5•Z=
   b)13•X+13•Y+13•Z-1313=
   c) 882-3 •(7•X+7•Y + 7•Z ) =

Answer 1

 1) a) 5x+5y+5z= 5(x+y+z)=  5*17= 85

b)13x+13y+13z -1313=13(x+y+z -101)= 13*(17-101)= 13* (-84)=  -1092

c) 882 -3*(7x+7y+7z)= 882 -3*7(x+y+z)= 882 -21*17=  882-357= 525

Answer 2

 1) a) 5x+5y+5z= 5(x+y+z)=  5*17= 85

b)13x+13y+13z -1313=13(x+y+z -101)= 13*(17-101)= 13* (-84)=  -1092

c) 882 -3*(7x+7y+7z)= 882 -3*7(x+y+z)= 882 -21*17=  882-357= 525  Atat am gasit ! :* Sper sa te ajute !!