If it's not what You are looking for type in the equation solver your own equation and let us solve it.
15=3m+9
We move all terms to the left:
15-(3m+9)=0
We get rid of parentheses
-3m-9+15=0
We add all the numbers together, and all the variables
-3m+6=0
We move all terms containing m to the left, all other terms to the right
-3m=-6
m=-6/-3
m=+2
| 17=2+5x | | 2/15x=-4 | | 3n=(3^2)^8 | | 13=m/4+ 9 | | 13=m4+ 9 | | 128-y=90 | | 9v=162 | | 5x25=125 | | 7x13=13 | | 2x=(3x-32) | | 10000=161.67x+6481.08 | | 5t+8=18 | | 6x+9-16x=-31 | | 6m-3=7m-8 | | x+9=-5x-21 | | 1038=6(x=19) | | 118-y=180 | | 1038=6(x=18) | | 9x+4=8x+15=180 | | 3(2x+5)=-33+24 | | 9x+4=-4+2×+22 | | 102.6=9(m+3.7) | | 4*6=x | | P^2+15=-8p | | 9x+5-6x=20 | | .07xx=3933.05 | | 4x+73=10x+7 | | -2=(3/9)x | | 3=3.3/t | | 75=g-17 | | 10q-7=23 | | –13u−–5u−–13u−–11u=–16 |