Question

Determina valoarea lui "a" din egalitatea:
27:[+(6×a-7×3):9]+(13-2×2×3)=2
Ajutor dau coroana

Answer 1

Răspuns:

27:[+(6×a-7×3):9]+(13-2×2×3)=2

27:[(6xa-21):9]+(13-12)=2

27:[(6xa-21):9]+1=2

27:[(6xa-21):9]=2-1

27:[(6xa-21):9]=1

[(6xa-21):9]=27:1

(6xa-21):9=27

(6xa-21)=27x9

6xa-21=243

6xa=243+21

6xa=264

a=364:6

a=44