[tex]\: \triangle EDF \: \sim \: \triangle HJG[/tex]
[tex]ED \sim HJ \\ EF \sim JG \\ FD \sim GD[/tex]
[tex] \frac{ED}{HJ} = \frac{ EF}{JG} = \frac{FD}{GD}[/tex]
[tex] \frac{ \cancel9 {}^{ \: 3} }{ \cancel{15} {}^{ \: \: 5} } = \frac{14}{y} = \frac{12}{x} \\ y = \frac{14 \times 5}{3} = 23.3 = 23 \\ x = \frac{12 \times 5}{3} = 4 \times 5 = 20[/tex]
