5х-5=2х-7
5х-2х=5-7
3х=-2|:3
х=-1.5
11х-1.8=7х+1.4
11х-7х=1.8+1.4
4х= 3.2|:4
х=1.25
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5х-5=2х-7
5х-2х=5-7
3х=-2|:3
х=-1.5
11х-1.8=7х+1.4
11х-7х=1.8+1.4
4х= 3.2|:4
х=1.25