Odpowiedź:
[tex] \frac{7}{21} = \frac{1}{3} = \frac{3}{9} [/tex]
x=9
[tex] \frac{2}{x} = \frac{3}{8} \\ 3x = 16 \: \: \: \: | \div 3 \\ x = \frac{16}{3} [/tex]
[tex] \frac{ - 2}{3} = \frac{ - 6}{9} [/tex]
x=-6
3/x= 7/21
7*x= 3*21
7x= 63 /:7
spr... 3/9= 7/21
1/3=1/3
L=P
2/x =3/8
3*x= 2*8
3x= 16 /:3
x= 16/3= 5 i 1/3
spr... 2: 16/3= 3/8
2*3/16= 3/8
6/16= 3/8
3/8= 3/8
-2/3 = x/9
3*x= -2*9
3x= - 18 /:3
x= - 6
spr... -2/3= -6/9
-2/3= - 2/3
Szczegółowe wyjaśnienie:
