Notam cu x numarul la care m-am gandit
[tex]\bf \: [(x + 5): 25]\cdot \: 3 = 75 ~~~ \bigg|:3[/tex]
[tex]\bf \: (x + 5): 25 = 25~~~ \bigg|\cdot25[/tex]
[tex]\bf (x + 5) = 625[/tex]
[tex]\bf x = 625-5[/tex]
[tex]\red{\boxed{\bf x = 620}}[/tex]
[tex]\green{\bf \underline{Verificare}}:[/tex]
[tex]\bf [(620+5):25]\cdot 3=(625:25)\cdot 3=25\cdot 3=75~(adevarat)[/tex]
[tex]==pav38==[/tex]