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)
M/(-3) = 23 // - 23
M/(-3)-23 = 0
-1/3*M-23 = 0 // + 23
-1/3*M = 23 // : -1/3
M = 23/(-1/3)
M = -69
M = -69
| 6x+24y=708 | | 15x-13=78 | | -34-8x=-4x-7(5x-4) | | 5-2z=12 | | 2x-4(x-2)=-5+3x-22 | | 6x-2(3x+1)=5 | | 1/36/7y-7/15 | | -x/8=42 | | X^2+2x+0.54= | | 4a-5+3a=60 | | 1+6x=43 | | 50=2x+5 | | 40x-24=257 | | c÷1/4=1/2 | | y-2=-7/9x | | 4a-5+3a=70 | | 67n=11n+1 | | 3x+3x+y+6x+2y= | | -7v+3v=-20 | | 1+4(2-1)=21 | | 7x^9-4x^2-27=0 | | -5-2(-1+7k)=-39-8k | | (-6)(-4)(-7)(-2)= | | (w+8)(w-4)= | | 5q+2-19+14q= | | -9/7=20/7b-5/4b | | 3x^2-x=17 | | 3(2x+8)=10x-16 | | 12(N+5)=24 | | 3/5x-1/3=-10/3 | | -35=-7w+4(w-8) | | 6p-1.75=3.85 |