Ответ:
1) 3(х-2)=х+2
3х-6=х+2
3х-х=2+6
2х=8
х=4
2) 5-2(х-1)=4-х
5-2х+2=4-х
-2х+х=4-5-2
-х=-3
х=3
3) (7х+1)-(9х+3)=5
7х+1-9х+3=5
7х-9х=5-1-3
-2х=1
х= -0.5
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Ответ:
1) 3(х-2)=х+2
3х-6=х+2
3х-х=2+6
2х=8
х=4
2) 5-2(х-1)=4-х
5-2х+2=4-х
-2х+х=4-5-2
-х=-3
х=3
3) (7х+1)-(9х+3)=5
7х+1-9х+3=5
7х-9х=5-1-3
-2х=1
х= -0.5