Question

x-{2x-[3-(x-5)]=7 denkleminin kökü ?

Comments

$-(x-5)=-x+5$ dir. $3-(x-5)=3-x+5=8-x$

$2x-(8-x)=3x-8$,      $x-{3x-8}=-2x+8$

$-2x+8=7\longrightarrow -2x=-1\longrightarrow x=1/2$ dir.