Question

Calculeaza: {[5:(2X3-1)+14]:15+3:[1+2X(45:15-2)]}:2
Va rog!
Dau coroana !

Answer 1

Răspuns

{[5:(2·3-1)+14]:15+3:[1+2·(45:15-2)]}:2=

{[(5:(6-1)+14]:15+3:[1+2(3-2)]}:2=

[(5:5+14):15+3(1+2·1)]:2=

[(1+14):15+3(1+2)]:2=

(15:15+3·3):2=

(1+9):2=

10:2=

5

Answer 2

Ai rezolvarea în atașament.