РЕШИТЕ!!!!!!!!7(х-1)=3х

Question

РЕШИТЕ!!!!!!!!7(х-1)=3х

Answer 1

7(х-1)=3х
7х-7=3х
7х-7-3х=0
4х=7
х=1,75

Answer 2

7(х-1)=3х
7х-7=3х
7х-3х=7
4х=7
х=7/4=1,75