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/26 = 1/2 // - 1/2
M/26-(1/2) = 0
M/26-1/2 = 0
1/26*M-1/2 = 0 // + 1/2
1/26*M = 1/2 // : 1/26
M = 1/2/1/26
M = 13
M = 13
| 4y+6y=20 | | 2x+5+135=180 | | -2f^2-9f-2=0 | | x/400*40=5 | | Y-2=-2.5(x+8) | | 7/8÷70= | | 3x-(11-3x)=19+x | | 4x-24+8=6x-4 | | 5(n+5)=2(n-3)+4 | | -j^2-9j-7=0 | | Y-3=2.5(x+8) | | 8n^2-8n-8=-8 | | f(x)=6/5x-3 | | 7x+42-34=53x | | x*3/8=-25/32 | | 10(11)+5y=180 | | 3u^2=5 | | 35=10x+30 | | 8x=(4x+14) | | 5x-7x+x-3x=64 | | 800x+5=4000 | | 3x-(8-3x+3)=19+x | | 8-8e^8x=0 | | G/20=-1 | | 267=5(8(6)+4)+7 | | 2(b-1)=4b+10 | | Z^2=34 | | 9x=-3x^2-5 | | 7v+6v-12v=11 | | 14=2*g | | 2(x+2)+2(x-1)=14 | | 8+6x-x^2=0 |