Найдите корень уравнения 4,5(7/15x+2/9)-0,77(8/11x-3/7)=-1,75
Решите задачу:
4,5(7/15x+2/9)-0,77(8/11x-3/7)=-1,75 9/2 (7/15x+2/9) - 77/100(8/11x-3/7) = - 7/4 21/10x + 1 - 14/25x + 33/100 = -7/4 21/10x - 14/25x= -7/4 - 1 -33/100 105-28 /50x = -175- 100 -33 /100 77/50x = -154/50 x = -154/50 : 77/50 x = -2