Răspuns:
3/x+4=6/18=>54=6x+24=>6x=54-24=>6x=30=>x=30/6=>x=5
3x-4/0,2=0,625/(0.875)=>(3x-4) * (0,875)=0,625 * 0,2=>(3x-4) * 875/1000=0,125=>(3x-4) * 35/40=0,125=>(3x-4) * 7/8=0,125=>(24x-32) * 7=1=>168x-224=1=>168x=225=>x=225/168=>x=1.33
Sper ca e bine si ca te-am ajutat!
