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)
(3/8)*m+(21/8)*m+5+8 = 0
3*m+13 = 0 // - 13
3*m = -13 // : 3
m = -13/3
m = -13/3
| (2/3x+5)(x/6-7)=0 | | 3(5x-6)=0 | | 3x(8-x)=0 | | 81g+54*2=351 | | (-3x+1)(7x-5)=0 | | (6x+3)/6=5(x-2)/9 | | 5d+1=8d+22 | | (6/(5-i)) | | 5a+5=24.5 | | 7.7=7c-7 | | 4e-9=29 | | (7x-1)(10x+7)=0 | | 2n+2n+2n+2n+2n+2n+2n+2n+2n= | | 8=6c-4 | | (4x+9)(1-2x)=0 | | 2e-8=8 | | 0=8x^4-14x^3-71x^2-10x+24 | | 4x+19=5x+9 | | (x+9)(x-6)=0 | | (1/c^2)+(2a/6c) | | 1/c^2+2a/6c | | (4x-9)(x+5)=0 | | 5y/2-9y-3=y/7+7/4 | | 15g+20*2=25 | | a/7+9=6/7 | | 9(b-6)-(1-3b)=-55 | | x/7=(x/8)-1 | | 3x-15=75 | | 4(10a+3)=10(4a-6) | | 10d+9=3d+16 | | 8(z+6)=z+2 | | 2a+12=17.2 |