The First One:8(5-3x)-4(2+3x)=3

Expansion: -24x -12x 40-8 =3

Combine:-36x 32 =3

Shift: -36x = 3-32= -29

Solution:x= -29/-36

The Second One:9(1+x)-8(x+2)= 2x

Expansion: 9x-8x 9-16 =2x

Combine: x -7 =2x

Shift: (x-2x) -7= 2x -2x

-x = -7

Solution:x= -7/-1

Is my formula for solving these equations correct (there are other ways but I thought my method is the easiest, or am I wrong?)? And are my solutions correct? If they're wrong, could you show me where I went wrong? Thanks guys!