x•a=135,x•b=73,m+n=17 ​

Răspuns :

Răspuns:

a) xa+xb-8(m+n)=135+73-8*17=208-136=72

b) 3(xa+xb)+5(m+n)=3*(135+73)+5*17=709

c) 100+135-73=162  

d) 5(m+n)x(40+135+73)=5*17x248=21080