Решить х+х+3(х+2) = 7

Question

Решить х+х+3(х+2) = 7

Answer 1

х+х+3(х+2)=7
2х+3х+6=7
5х=1
х=1\5

Answer 2

Х+х+3х+6-7=0
5х-1=0
5х=1
х=1:5
х=0.2