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)
a/4 = -6 // + 6
a/4+6 = 0
1/4*a+6 = 0 // - 6
1/4*a = -6 // : 1/4
a = -6/1/4
a = -24
a = -24
| 1/10+b=-31/40 | | d+3/7=10/7 | | w+4=16/5 | | a+2/7=-75/7 | | n/2=-3 | | a/3=-5/6 | | n-2/5=28/5 | | n+7=-5 | | 2=b-3 | | t+3/8=53/56 | | -7+-(-8)= | | 5+a=35/8 | | k/-3=6/7 | | a-4/5=56/5 | | -6b=-72 | | w+3=-4 | | d+3/8=-23/88 | | 3(6e+2)=78 | | -5/8+a=-9/40 | | t+1/10=-79/110 | | w-2=10 | | a+1=5/4 | | 2/3n=14/33 | | 7+w=71/10 | | n=12 | | 50=2(2q+17) | | 4(2s-3)=84 | | -3+n=8 | | 2(3e+5)=130 | | -17/2=x-8 | | b/2=-6/7 | | w-1=-8/5 |