calculeaza a) 3pe x = 12 pe 56

Răspuns :

3/x = 12/56

12x = 168

x = 14


[tex] \frac{3}{x} = \frac{12}{56} \\ \\ x = \frac{56 \times 3}{12} \\ \\ x = \frac{168}{12} \\ \\ x = 14[/tex]