Răspuns :
Răspuns: [tex]\color{red}\Large\boxed{\bf 18}[/tex]
Explicație pas cu pas:
[tex]\large\bf 2 \cdot 10-10:(1+4) =[/tex]
[tex]\large\bf 2 \cdot 10-10:5=[/tex]
[tex]\large\bf 20-10:5=[/tex]
[tex]\large\bf 20-2=[/tex]
[tex]\color{red}\large\boxed{\bf 18}[/tex]
#copaceibrainly