Question

5 pe 11×{9 pe 2 ×[6pe 11 ×(4 pe 3-1 pe 2 x)-1pe 6 ]-2pe 5}=1pe 2

Answer 1

5/11·{9/2·[6/11·(4/3-1/(2x))-1/6]-2/5}=1/2 |·11/5 (am folosit punctul pentru inmultire ca sa evit confuzia cu x-necunoscuta)
9/2·[6/11·(4/3-1/(2x))-1/6]-2/5=11/10 |+2/5
9/2·[6/11·(4/3-1/(2x))-1/6]=15/10 |·2/9
6/11·(4/3-1/(2x))-1/6=1/3 |+1/6
6/11·(4/3-1/(2x))=3/6 |·6/11
4/3-1/(2x)=3/11
1/(2x)=4/3-3/11
1/(2x)=(44-9)/33
2x=33/35
x=33/70
S={33/70}