Răspunsuri

  • Utilizator Brainly
2014-02-22T12:57:38+02:00
(5-x):3/4=8 ⇒ 4(5-x)=24 ⇒ 20-4x=24 ⇒ 4x=-4, x=-1
[(2x+1)4-2}:5+1=7 ⇒ [(2x+1)4-2]:5=6 ⇒ (2x+1)4-2=30 ⇒ (2x+1)4=32 ⇒ 2x+1=8 ⇒
2x=7, x=7/2