13*(x - 6) 17*(4 - x) ---------- - ---------- 10 10
(13*(x - 6))/10 - 17*(4 - x)/10 при x = 2
(13*(x - 6))/10 - 17*(4 - x)/10
(13*((2) - 6))/10 - 17*(4 - (2))/10
(13*(2 - 6))/10 - 17*(4 - 2)/10
-43/5
-73/5 + 3*x
-14.6 + 3.0*x
-73 + 15*x ---------- 5