Ответ:

-3(х-1)=24-10х

-3х-3=24-10х

-3х-3+10х=24

7х-3=24

7х=24-3=21

х=21:7

х=3

2(4х+5)-3(х+6)=9х+8

8х+10-3х-18=9х+8

5х-28=9х+8

5х-9х=8+28

-4х=36

х=36:(-4)

х=-9