If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( M )
(1/6)*100^3*M = 0
(1/6)*100^3*M = 0
(1/6)*100^3*M = 0
500000/3*M = 0 // : 500000/3
M = 0
M in (-oo:0) U (0:+oo)
70 = (500*(100/2)-(500*M)-2)/((1/6)*100^3*M) // - (500*(100/2)-(500*M)-2)/((1/6)*100^3*M)
70-((500*(100/2)-(500*M)-2)/((1/6)*100^3*M)) = 0
70-6*100^-3*M^-1*(500*(100/2)-500*M-2) = 0
70-3/500000*M^-1*(24998-500*M) = 0
70-3/500000*M^-1*(24998-500*M) = 0
70003/1000-37497/250000*M^-1 = 0
70003/1000-37497/250000*M^-1 = 0
-37497/250000*M^-1 = -70003/1000 // : -37497/250000
M^-1 = 17500750/37497
-1 < 0
1/(M^1) = 17500750/37497 // * M^1
1 = 17500750/37497*M^1 // : 17500750/37497
37497/17500750 = M^1
M = 37497/17500750
M = 37497/17500750
| 8=-7/w-7 | | 0=7x-2x^2 | | 5x^3=15.625 | | 50x=1120 | | 40x=1120 | | (1/6)(m+2)=(1/4)(5-m) | | 9x-7=73-7x | | 16y^3=0 | | 25Z=4 | | 8x+y+5=0 | | 14+2.866666667t+t^2=0 | | 3/5Q=30 | | 40x+20(x(1.5))=1540 | | -85=3-2(1-8r) | | 15t^2+43t+210=0 | | -3n+4(5n+2)=94 | | 40x+10(x(1.5))=1540 | | (2y-1)(8+y)=0 | | 6x-3x-4x+8=7 | | 4w-10=2.5-(w/6) | | (7/6)^-2= | | (M/8)^3=10 | | (x-3)/5=0 | | -204=6r-6(8r-2) | | 53=1/2(180-x) | | 4(3x+2)=16x+5-4x+3 | | 1.7x+x=1000 | | 2x^2-10x+8=72 | | -161=7(1+3x)+7x | | 4(x+4)=2x+5 | | 5(7x+1)=35x-6 | | 8+25481937620=3 |