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/3 = 4 // - 4
-a/3-4 = 0
-1/3*a-4 = 0 // + 4
-1/3*a = 4 // : -1/3
a = 4/(-1/3)
a = -12
a = -12
| 72x=-12 | | -17=-7x+8 | | 17-3x=x+9 | | -1/2y+5/2=-3/5y-4 | | 249=1+8(4b+3) | | 6x+8=22+3x | | 2(4-a)=-2-2a | | X/10-6=20 | | (10z-2)+(6z+10)=DEH | | 18=-a+19 | | 5x+1/4y=12 | | y/5+9=6 | | x+16+16=9+16 | | 6(7+3p)-3=7-5(-4p-1) | | 280=5(3x-5)+4(9x+2) | | -9/2w-1/4=-1/2 | | ax-1=b | | 8(y-2)=2y-40 | | 4(x+2)-x=2(x-1)+9 | | 18=a+14 | | 63.546=62.9296x+64.9278y | | 10x+3y-5y-x+y= | | 21/100=x/28 | | 4-6n=2n+8(-7n+7) | | 5q-8=32 | | (3/5)a=1/4 | | (-1/2)h+4-h=13 | | 0.12t-0.06=0.04t-0.08+0.02 | | 7x+8=2x+44 | | 35+20h=95 | | X-2/15=7/15 | | 2/3*g+1/4*k=22 |