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