Question

Imi trebuie pana maine dimineata dau coroana ptr cel mai bun rasp​

Answer 1

Răspuns:

s) (72+s-56)-(30-10+5)=25

(72+s-56)-25=25

metoda mersului invers => 72+s-56=25+25

72+s-56=50

72+s=50+56

72+s=106

s=106-72

s=34

t) (36-30-t)+72-70=28:7

(6-t) + 72-70=4

metoda mersului invers => 6-t= 4-2

6-t=2

t=6-2

t=4

u) (49-36+u)-8-20=9

metoda mersului invers => 13+u=9+8+20

13+u=37

u=37-13

u=24

v) (v-25-16)+30-50=3

metoda mersului invers => v-25-16=3+50-30

v-25-16=23

v=23+16+25

v=64