0,8х+6=348-х
348-х=0,8х+6
348-6=0,8х+х
1,8х=342
х=190
Х+26=1344:32
х+26=42
х=42-26
х=16
2х+7=х+5,5
2х-х=5,5-7
1х=-1,5
х=-1.5:1
х=1.5
________
9.5х+2=5,7х-5.6
9.5х-5.7х=-5.6-2
3.8х=-7.6
х=-7.6:3.8
х=-2
_______
2.9х+7.4=Х+1.7
2.9х-х=1.7-7.4
1.9х=-5.7
х=-5.7:1.9
х=-3
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