Найди корень уравнения -0,1f+10=9 f= ?

-0,1f + 10=9                                                                                                         -0,1f = 9-10 -0,1f =-1    | * (-1) 0,1f = 1 f = 1 / 0,1 f = 10

-0,1f+10=9 -0,1f=9-10 -0,1f=-1 f=10 Ответ: f=10