Question

{[(6-a)×2-7]×9-5};2=2 Va rog aratatimi urgent cum se rezolva acest exercitiu​

Answer 1

{[(6-a)×2-7]×9-5}:2=2

[(6-a)×2-7]×9-5=2×2=4

[(6-a)×2-7]×9=4+5=9

(6-a)×2-7=9:9=1

(6-a)×2=1+7=8

6-a=8:2=4

6-a=4

=>a=6-4=2

=>a=2