Question

2009-3×(2x-1)=1005 cine stie? mie nu-mi iese

Answer 1

$\displaystyle 2009-3(2x-1)=1005 \\ 2009-6x+3=1005 \\ -6x=1005-2009-3 \\ -6x=-1007 \\ x= \frac{1007}{6}$

Answer 2

2009-3·[2x-1]=1005
⇒3·[2x-1]=1004
⇒2x-1=334,[6]
⇒2x=335,[6]
⇒x=167,8[3]⇒numarul gasit;