2(х+3)=х+13 4(5-х)=3х-1 3(х-2)=х+4 5(х-1)=4х+3

2(х+3)=х+13
2х+6=х+13
2х-х=13-6
х=7
4(5-х)=3х-1
20-4х=3х-1
-4х-3х=-20-1
-7х=-21
х=3
3(х-2)=х+4
3х-6=х+4
3х-х=4+6
2х=10
х=5
5(х-1)=4х+3
5х-5=4х+3
5х-4х=3+5
х=8