Răspunsuri

2014-02-05T13:59:39+02:00
\frac{9+1}{9}x+ \frac{1}{2}  = x + \frac{67}{10}
\frac{10*2}{9*2}x+ \frac{9}{2*9}  = \frac{67+10x}{10}
\frac{20*x+9}{18}  = \frac{67+10x}{10}
\frac{5*20*x+5*9}{90} = \frac{9*67+9*10x}{90}
100x+45=603+90x
100x-90x=603-45
10x=558
 x=\frac{558}{10}
x=55.8
1 2 1