Question

Answer 1

`x/15 = 3/5 - 2/3`

`x/15 = -1/15`

`x = -1`

`---------`

`11/8 + 13/6 = 85/x`

`-> (33+52)/24 = 85/x`

`-> x = 24`

`-------------`

`c, x - 7/8 = 13/12`

`x = 13/12 + 7/8`

`x = (26+21)/24`

`x = 47/24`

Answer 2

7:=>x/15=9/15-10/15=-1/15

=>x=-1

8: =>85/x=66/48+104/48=170/48=85/24

=>x=24

9: x=13/12+7/8=26/24+21/24=47/24