Question

Решите уравнение...............

Answer 1

1,5^5х-7=(2/3)^х+1
(3/2)^5х-7=(2/3)^х+1
(3/2)^5х-7=(3/2)^-х-1
5х-7=-х-1
6х=6
х=1

Answer 2

1.5^(5x-7)=(2/3)^(x+1),
(3/2)^(5x-7)=(3/2)^-(x+1),
5x-7=-(x+1),
5x-7=-x-1,
5x+x=7-1,
6x=6,
x=1