(y–15,7) : 5,14 + 1 1/3 = 6 1/3
(y–15.7)/5.14=19/3–4/3 (y–15.7)/5.14=15/3=5 y–15.7=5·5.14 y–15.7=25.7 y=15.7+25.7=41.4