Question

решите уравнение 
(1/2х+1/3х)*4/5=0,1

Answer 1

(1/2х+1/3х)*4/5=0,1
5/6x*4/5=0.1
5/6x=5/4*0.1
x=6/4*0.1
x=1.5*0.1
x=0.15

Answer 2

непонимаю