Question

помогите решить 2 уравнения: 1) 1118-1427х=512    2) 13х+14х+15х=1 1775

Answer 1

1) 11/18-14/27*х=5/12
14/27*х=11/18 - 5/12
14/27*х=(22-15)/36
14/27*х=7/36
Х=7/36 : 14/27
Х=7/36 * 27/14
Х=1/4 * 3/2
Х=3/8

2) 1/3х+1/4х+1/5х=1 19/75
(20х+15х+12х)/60 =94/75
47/60 * х =94/75
Х=94/75 : 47/60
Х=94/75 * 60/47
Х=8/5
Х=1 3/5