1) 10-3(5х-1.5)=2,5-5х
10-15х+4,5=2,5-5х
-15х+5х=2,5-4,5-10
-10х=-12
х=12/10=1,2
2) 2(3х-4)=5х-3(х+1)
6х-8=5х-3х-3
6х-5х+3х=-3+8
4х=5
х=5/4=1 целая 1/4
1) 10-3(5х-1.5)=2,5-5х
10-15х+4,5=2,5-5х
-15х+5х=2,5-4,5-10
-10х=-12
х=12/10=1,2
2) 2(3х-4)=5х-3(х+1)
6х-8=5х-3х-3
6х-5х+3х=-3+8
4х=5
х=5/4=1 целая 1/4