Автор - dimetriacat2

x+2,6=3,4
6x=1,2
3x-8=15
6x-2(4x-1)=7

Ответ

Автор - TANJA71
х=3,4-2,6
х=0,8

х=1,2/6
х=0,2

3х=15+8
3х=23
х=23/3=7 2/3

6х-8х+2=7
-2х=7-2
-2х=5
х=5/-2
х=-2,5

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