If it's not what You are looking for type in the equation solver your own equation and let us solve it.
27-mm=4
We move all terms to the left:
27-mm-(4)=0
We add all the numbers together, and all the variables
-mm+23=0
We move all terms containing m to the left, all other terms to the right
-mm=-23
m=-23/1
m=-23
| -1/5x+182=1/4(x-36)=2 | | -2n-12=5(-6n-8) | | 4/2=3/b | | -4/a=9 | | M=427-m | | V=3v-32 | | 7x-2=-3x^2 | | 20b+52=10b+82 | | 3x^2-42x+225=0 | | -4x=3x+4 | | -2(7x+9)=4 | | 7x+100=9x+96 | | r-15.5=-6.4 | | -14x=-18=4 | | 3c=7c-72 | | 15-5x(7+(-4x))=100 | | g/27.3=54.6 | | 15z+18=9z+30 | | -6n-8n=8(1-3n)+8(3n+1) | | 2n-9n-14=42 | | 4z+17=3z+19 | | 2b+7=19b-10 | | 11a=a+30 | | 33(x)=1/3x-5 | | 8/3=(6k-28)/(2k-6) | | 19z=z+36 | | X=x-62 | | 8/3=(6k-28/2k-6) | | 8/3=6k-28/2k-6 | | 150=10x+80 | | -5(1+a)-4(a-2)=2 | | 9w-4=-4+9w |