Question

5(x + 1) + 6(x - 3) = 20 + 7x - 11​

Answer 1

5(х+1)+6(х-3)=20+7х-11

5х+5+6х-18=9+7х

11х-13=9+7х

11х-7х=9+13

4х=22

х=22:4

х=5,5

Ответ:5,5