1. 6×(x-4)-2(x-1)=… ​

6 × (x-4) – 2 (x-1)

= 6x – 24 – 2x + 2

= 6x – 2x – 24 + 2

= 4x – 22

4×21/6

=4×13/6

=52/6=8 4/6