Решите уравнения: 1/6x+1,5=x ; 1/x+2=0,9/5,4 ; 5x+2=18-3x - вопрос №16151209545218323052752303 от Qwertysiq 28.08.2020 19:36

Question

Математика: Решите уравнения: 1/6x+1,5=x ; 1/x+2=0,9/5,4 ; 5x+2=18-3x ; 2/3x+0,5= -x

Qwertysiq · Answer

1/6x+1,5=x            1/x+2=0,9/5,41/6x-6/6x=-1,5       1/x+2=9/10: 54/10-5/6x=-3/2              1/x+2=1/6x=-3/2:(-5/6)           1/x=1/6-12/6x=9/5                     1/x=-11/6x=1,8                      x=-1:(-11/6)                             x=-6/115х+2=18-3х              2/3x+0,5=-x5х+3х=18-2              2/3x+3/3x=-0,58х=16                      5/3x=-0,5х=16:8                     x=-0,5:5/3х=2                         x=-0,3...