daca 3x+(1/2)³×2 2/5=10 4/5 ,atunci x =?
Urgent va rog

Răspuns:
3x+1/2³·(2·5+2)/5=(10·5+4)/5
3x+1/8·12/5=54/5
3x+6/20=54/5
3x=⁴⁾54/5-6/20
3x=216/20-6/20
x=210/20:3
x=105:3
x=35