5х-(1/2х+9)=18 ПОМОГИТЕ

Question

5х-(1/2х+9)=18 ПОМОГИТЕ

Answer 1

5х-1/2x=18+9

4.5x=27

x=27/4.5

x=6

Answer 2

5х-1/2х-9=18

4,5х=18+9

4.5х=27

х=27/4,5

х=6