Răspuns :
[tex] \frac{6}{12} = \frac{30}{x} \\ 6 \times x = 12 \times 30 \\ 6 \times x = 360 \\ x = \frac{360}{6} \\ x = 60[/tex]
[tex] \frac{6}{12} = \frac{30}{x} \\ 6 \times x = 12 \times 30 \\ 6 \times x = 360 \\ x = \frac{360}{6} \\ x = 60[/tex]