1) 3(х-2)=х+2
3х-6=x+2
2x=8
x=8:2
x=4
2) 5-2(x-1)=4-x
5-2x+2=4-x
-x=4-5-2
-x=-3
x=3
3) (7x+1)-(9x+3)=5
7x+1-9x-3=5
7x-9x=5-1+3
-2x=7
x=-3,5
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Answers & Comments
1) 3(х-2)=х+2
3х-6=x+2
2x=8
x=8:2
x=4
2) 5-2(x-1)=4-x
5-2x+2=4-x
-x=4-5-2
-x=-3
x=3
3) (7x+1)-(9x+3)=5
7x+1-9x-3=5
7x-9x=5-1+3
-2x=7
x=-3,5