Question

Folosind egalitatile: xa=135; xb=73 si m+n=17, calculati:
a) xa + xb - (8m + 8n) = ?
b) 3xa + 3xb + 5m + 5n = ?
c) 100 + ax - xb = ?
d) (5m + 5n) x (40 + xa + xb) = ?
Va rog!! E urgent!!!!!

Answer 1

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