If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
12*m+12*(1/2)*m+108 = 0
18*m+108 = 0 // - 108
18*m = -108 // : 18
m = -108/18
m = -6
m = -6
| 0=n^2+4n-144 | | (6*x)+(4*x)=63200 | | 3(z-3)=-4 | | 1.5x=1.3x+1 | | 36a^2b^3-45ab^4=0 | | (4*x)+(6*5280)=52800 | | -2c+11=-3-31 | | 9350=50(x+40)+100x+3x(20) | | -2c+11=-31 | | 2d^2+d-1=0 | | 4c-3=-31 | | 0.9x-0.4=3.2 | | x+(x-1)=130 | | 9/x-3=7/x-5 | | 3*(-1)+4*(-6)-9= | | 64P^2-63P+16=0 | | 9350=50x+40+100x+3x(20) | | 21-5y=26 | | 21120+6x=52800 | | 81=45+l/5 | | 3h+90=100 | | 3h+90=1000 | | (x+19.6)+(45.9-4.59-1.96-0.1*x)*0.471=150 | | 3h+90=10000 | | 10+3x=25 | | 9350=x+40+x+3x | | 18-77=4 | | 21+-22= | | 1+-28= | | -1x+-6y= | | 4/3x+9/10=5/6 | | 15.2=4x+4(x+.6) |