5/7(0,21-1,4х)-4/9•(0,36-4,5х)=1 Решите уравнение

Question

5/7(0,21-1,4х)-4/9•(0,36-4,5х)=1
Решите уравнение

Answer 1

5/7(0,21-1,4х)-4/9(0,36-4,5х)=1
5/7(21/100-7/5х)-4/9(9/25-9/2х)
3/20-х-4/25+2х=1
-1/100+х=1
-1+100х=100
100х=100+1
х=101/100