Răspuns :
[tex]x- \frac{x}{2} -( \frac{1}{3} X \frac{x}{2} )- \frac{x}{2} X \frac{x}{6} - \frac{1}{3} X \frac{x}{12} =8[/tex]
[tex]X- \frac{x}{2} - \frac{x}{6} - \frac{x}{12} - \frac{x}{36} =8[/tex]
aducem la acelasi numitor,acela fiind 36
[tex]36x-18x-6x-2x-x=188[/tex]
[tex]9x=288[/tex]
[tex]x=288:9[/tex]
[tex]x=32[/tex]
[tex]X- \frac{x}{2} - \frac{x}{6} - \frac{x}{12} - \frac{x}{36} =8[/tex]
aducem la acelasi numitor,acela fiind 36
[tex]36x-18x-6x-2x-x=188[/tex]
[tex]9x=288[/tex]
[tex]x=288:9[/tex]
[tex]x=32[/tex]
x-suma initiala
x/2 -prima data
x-x/2= (2x-x)/2 =x/2 -restul
1/3 din x/2= 1/3 * x/2= x/6 -a doua oara
x/2-x/6= (3x-x)/6= 2x/6 -noul rest
1/2 din 2x/6= 1/2 * 2x/6= 1/2 * x/3= x/6 -a treia oara
2x/6 -x/6 =x/6 -noul nou rest
1/3 din x/6 =1/3 * x/6= x/18 -a patra oara
x/6- x/18= (3x-x)/18= 2x/18- i-au mai ramas
2x/18=8
x/9=8
x=8*9
x=72 lei suma initiala
x/2 -prima data
x-x/2= (2x-x)/2 =x/2 -restul
1/3 din x/2= 1/3 * x/2= x/6 -a doua oara
x/2-x/6= (3x-x)/6= 2x/6 -noul rest
1/2 din 2x/6= 1/2 * 2x/6= 1/2 * x/3= x/6 -a treia oara
2x/6 -x/6 =x/6 -noul nou rest
1/3 din x/6 =1/3 * x/6= x/18 -a patra oara
x/6- x/18= (3x-x)/18= 2x/18- i-au mai ramas
2x/18=8
x/9=8
x=8*9
x=72 lei suma initiala