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)
(1/5)*m = 4-((3/10)*m) // - 4-((3/10)*m)
(1/5)*m+(3/10)*m-4 = 0
1/2*m-4 = 0 // + 4
1/2*m = 4 // : 1/2
m = 4/1/2
m = 8
m = 8
| 1/3g=8 | | 5+x=-19 | | -2[x]=6 | | 700=2xp | | -2[x]=-6 | | 10/x-5=30 | | t-(-3)=41 | | 4(-9n+3)=12+3n | | [y]+14=14 | | 3(x+1)=4 | | 4(-9n+3)=12+3 | | [y]+14=20 | | 2x^2+3x=6x+x^2+28 | | 1/3(9x-18)=3/2(4x-6) | | 3x-7=2x+4+2-1 | | -5[v]=-20 | | 3m-1=9m | | 2x+-6=-16 | | (3x)+(4x-20)+(6x-60)=180 | | 3m+1=9m | | 6w-8+2w=72 | | (1/750)=x/100 | | -57-6x=6(7x-10)+3 | | 2/3k+4/3=-5-2/5k | | 2m+3=8m | | 10/7x=56 | | 15=-b/4+9 | | 6w+2w=600 | | 1/4x=-2 | | 12-n=-n+3 | | -6[u]=30 | | 7x-35=63 |