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)
(-1/7)*m-2 = -13 // + 13
(-1/7)*m-2+13 = 0
11-1/7*m = 0 // - 11
-1/7*m = -11 // : -1/7
m = -11/(-1/7)
m = 77
m = 77
| -3x-24=5 | | -2/4d-4-4=5 | | 7y-4=6y-3 | | 7m+5=-9 | | 0+P(0)+650+P(650)= | | 5p+5=20 | | -15m+4m=m | | 3x-2/-4=10 | | 3(t-11)=2(t+8) | | 12+5c=c+4 | | 81=w/3 | | 4x+10=(3x+15) | | d-10-2d+7=8-10 | | 1/2x0-7=y | | 6x=(5x+7) | | -8x+16= | | f(x)=20(1.07)x | | 2x^2-px-18=0 | | K^2-10k+15=0 | | 3x^2+2y^2+z^2-2xz+4x-8y+10=0 | | (24(x^2-420))/x^2 | | 2+7n=17+4n | | -3(-5x+3)=7(x+2)-23+8x | | 6cos(x+50)=2 | | f(4)=3(4)+4 | | (x-y)=630 | | -15-4n=-13 | | 3(9-1)-7=3g+4 | | X+1.5=3.45 | | (z^2)+iz+5-5i=0 | | 2x+4+3x+3=57 | | 12-4m+m=13 |