Question

Rezolva ex doi ori acolada27-2oriparanteza dreapta trei ori a minus paranteza rotunda 35:5-2ori trei paranteza rotunda paranteza dreapta plus trei acolada:4=10

Answer 1

2*{27-2[3*a-(35:5-2*3)]+3}:4=10 
27-2[3*a-(7-6)]+3=20
27-2(3*a-1)=17
27-6a+2=17
6a=12
a=12:6
a=2

Daca nu intelegi ceva, intreaba-ma.