1) 3х-1=2 (х-2) 2) 3 (х+5)=7-5х

Question

1) 3х-1=2 (х-2)
2) 3 (х+5)=7-5х

Answer 1

1й 3х-1=2(х-2)3х-1=2х-4
3х-2х=1-4
х=-3


3(х+5)= 7-5х3х+15=7-5х3х+5х=-15+78х=-8х=-1Ответ: х=-1