1) g=6x divide both sides by 6 -> g/6=x
3)z=m-x subtract both sides by m -> z-m=-x flip the positive negative on each side->-z+m=x or m-z=x
5)u=x-k add k to each side -> u+k=x
7)u=k/a multiply each side by a -> ua=k divide each side by u-> a=k/u
9) 12am=4 divide each side by 12-> am=4/12=1/3 divide each side by m->
a=
10)-3x+2c=-3 subtract 2c from ech side ->-3x=-3-2c divide each side by -3 ->x=-3-2c/-3 = 2c+3/3
11)am=n+p divide both sides by m -> a=n+p/m
16)g=x-c+y subtract both sides by y -> g-y=x-c add both sides with c -> g-y+c=x
i hope these are correct