Question

Ex G.2429 vă rogggggg urgent!! Dau coroana

Answer 1

{[3,5 ×((21+a)/5-2,(3))-7,(3))]:1/5-2}:0,(2)=36
2,(3)=(23-2)/9=21/9=7/3
7,(3)=(73-7)/9=66/9=22/3
0,(2)=2/9
{[3,5 ×((21+a)/5-7/3)-22/3]:1/5-2}:2/9=36
{[3,5 ×(21/5+a/5-7/3)-22/3]×5-2}×9/2=36
[3,5 ×(21*3/15+a/5-7*5/15)-22/3]×5-2=8
[3,5 ×((63-35)/15+a/5)-22/3]×5=10
3,5 ×(28/15+a/5)=2+22/3
28/15+a/5=28/3:3,5
28/15+a/5=28/3×2/7
28/15+a/5=8/3
a/5=8/3-28/15
a=(40-28)/3
a=12/3
a=4