If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
4-4*a = -4 // + 4
4-4*a+4 = 0
8-4*a = 0 // - 8
-4*a = -8 // : -4
a = -8/(-4)
a = 2
a = 2
| 5m+1=51 | | -4m-2=-22 | | -10-4x=-10 | | 3+4a=11 | | -10+7k=-3 | | -3k+10=-20 | | -3m+9=6 | | -5b+2=-38 | | -5x-1=-1 | | 2m-1=-19 | | -10-6k=-34 | | -6+4m=-6 | | -2d-1=-21 | | 5a+10=-40 | | 10-6a=22 | | -7w-5=-89 | | 4t+9=-39 | | -2-2n=6 | | 7+2t-6=9t+10-6t | | 7-6x=-59 | | -5+7b=44 | | -2t+5=9 | | 5b+1=-59 | | -4a-8=-20 | | 3x=25+1 | | .3(x+3)-.6(x+3)=-.3x-.9 | | x/19=-14 | | -2.6x=-33.8 | | 2+x/4=5 | | 4-12+5=15+x-4 | | -5x-4x+10=1 | | 7x-3=5+6-(4x+3) |