2      6        4 --- · --- x + --- x = 32 3      5        5 2 · 6         4 ------ x + --- x = 32 3 · 5         5 semplifico il 6 con il 3 mi resta 2 al numeratore 2 · 2         4 ------ x + --- x = 32 1 · 5         5 4          4 --- x + --- x = 32 5          5