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)
4-(m/5) = 0
4-1/5*m = 0 // - 4
-1/5*m = -4 // : -1/5
m = -4/(-1/5)
m = 20
m = 20
| y-8=(-6/7x) | | -6x+4-2x=4-10x+4 | | 2*y+2+y=1 | | 6/7=54/2 | | (33b-8)-8(4b+4)=-2 | | -2y+3=-7 | | x^3-4x^2+16x=0 | | 40m-10m=30 | | 9m+7-3b=2 | | 0.003x^2+35x-42=0 | | s^2-3sx-70x^2=0 | | 5x-3xy+2y=1 | | 2/3x+5=x+9 | | -42=7z | | 7y+8=6y-7 | | -1/2(32x^2)+24x+0 | | (7a+3)(4a-7)=0 | | 0.003x^2-35x-42=0 | | 1/2(6-3x)=9 | | -2p+4+3p=8 | | 200e^10=x | | 2/7x-2=-4 | | 15m^2+38m+7= | | B=7/8(A-8) | | 200e^0=x | | y=(5x+1)/(3x-2) | | 25-8=a | | 8+2/3=8/3 | | f(x)=200e^0 | | 3xy-2y-5x=1 | | 5n^2-17=-18 | | 3xy-2y-5x-1=0 |