(7t+5)(12t-2)=(14t+1)(6t+11)
t это типо Х
(7t+5)(12t-2)=(14t+1)(6t+11) 84t-14t+60t-10=84t+154t+6t+11 84t-14t+60t-84t-154t-6t=10+11 -114t=22 t=-22/114 t≈0.2