Question

-3x/7+3*(x-2/7)+11=-7/2x+3(x+1) решите уравнения. пожалуйста.

Answer 1

-3х/7+3х-6/7+11=7/2х+3х+3

(-3х-6)/7+3х+11-3х-3=7/2х

-(3х+6)/7+11-7/2х=0

-(3х+6)/7-7/2х=-11

(-6х-12х-49)/14х=-11

(-18х-49)/14х=-11

-18х-49=-154х

-18х+154х=49

136х=49

х=49/136