No.6. x/2+x-4/3=no.7. x+1/3-x-2/4=no8. 3x/6-2/6–x+4/3=no.9 2a-3/3+4-3a/=

6.×/2+×-4/3
=3×/6+2. (×-4)/6
=3×/6+2×-8/6
=3×+2×-8/6
=5×-8/6

7.×+1/3-×-2/4
=4.(×+1)/12-3 (×-2)/12
=4×+4/12-3×-6/12
=×-2/12