If it's not what You are looking for type in the equation solver your own equation and let us solve it.
321=72k
We move all terms to the left:
321-(72k)=0
We move all terms containing k to the left, all other terms to the right
-72k=-321
k=-321/-72
k=4+11/24
| 437.2136=3.14r^2 | | -4+6x=22 | | .3x-20=130 | | 1.732050808=(x/18) | | n-22=48 | | -9x=4=-139 | | 2x-14=7x-5x+14-4 | | (9x-2)/2x=√(9x-2) | | -1(7z+1)=20 | | 2x/13=12.31/20 | | 5x-7x=5x-7x | | -16+x=-6x | | 17=x5+13 | | 10y÷4=20 | | 6+5y=46 | | 5^(2x-3)=12 | | 6x−6=-30 | | 4y+3=32 | | 3.7c=5.92 | | 3x+4=6-11 | | 10x+66=9x+76 | | x/20=46 | | X÷3-x÷2=2 | | 2(x+4)/3=1 | | 1/9d=7 | | 2x-5x+4=-11 | | (123-^23-5^2)/(15x6)= | | n/4.5=1.8 | | 3÷14=x | | 2x+x+9x=96 | | 92=x*x | | 4v-5=71 |