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)
15 = m+4 // - m+4
15-m-4 = 0
11-m = 0 // - 11
-m = -11 // * -1
m = 11
m = 11
| -8+m=0 | | -7=k+2 | | w-4=-16 | | b+5=-5 | | -6*x^2+5*x-6=0 | | n-8=-7 | | 2+x=-9 | | 9(3)+y=14 | | b-2=-7 | | 5=k+3 | | 6+n=16 | | 4=t-8 | | 10+a=10 | | -2+k=7 | | 2k=16 | | d/-6=4 | | k+9=16 | | -7k=-84 | | 15=a+4 | | d+6=18 | | b-8=-13 | | 5x+5=4x+15 | | -6x^2=-5x+6 | | .8(7-2x)= | | k+6=-4 | | 6+t=1 | | 9+n=8 | | 4p+5(1-p)=15 | | t(n)=4n-8 | | 3/4x=-12 | | -6=t-8 | | d/-7=-5 |