Question

решите уравнение 2(х-1)=3(4-х)+5 (2 б)

Answer 1

2(х-1)=3(4-х)+5
2х-2=12-3х+5
2х-2=12+5-3х
2х+3х=12+5+2
5х=19
х=19:5
х=3.8