Х+х+х=39
2•(х+1)+3=44
5+2•(х+3х)=35
10х=100
35х=75
Решите пожалуйста!!!

х+х+х=393х=39х=39:3х=132*(х+1)+3=442х+2+3=442х=44-2-32х=39х=39:2х=19.55+2*(х+3х)=355+2х+6х=352х+6х=35-58х=30х=30:8х=3 3/410х=100х=100:10х=1035х=75х=75:35х=2 1/7