Question

{[(a+3)x3+3]x3+3}x3+3=120

Answer 1

Răspuns:

{[(a+3)x3+3]x3+3}x3+3=120

{[(a+3)x3+3]x3+3}x3=120-3

{[(a+3)x3+3]x3+3}x3=117

[(a+3)x3+3]x3+3=117÷3

[(a+3)x3+3]x3+3=39

[(a+3)x3+3]x3=39-3

[(a+3)x3+3]x3=36

(a+3)x3+3=36÷3

(a+3)x3+3=12

(a+3)x3=12-3

(a+3)×3=9

a+3=9÷3

a+3=3

a=3-3

a=3

Sper ca te-am ajutat!!!