Verified answer

3(2+1,5x)=0,5x+24

6+4,5x=0,5x+24

4x=18

x=4,5

Ответ:x=4,5

Verified answer

3(2+1,5x)=0,5x+24

6+4,5х=0,5х+24

4,5х-0,5х=24-6

4х=18

х= 18/4

х=4,5

проверка

 3(2+1,5*4)=0,5*4+24

6+18=2+24

24=24