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/(-2.3) = 7.9 // - 7.9
a/(-2.3)-7.9 = 0
-0.43478261*a-7.9 = 0 // + 7.9
-0.43478261*a = 7.9 // : -0.43478261
a = 7.9/(-0.43478261)
a = -18.16999995
a = -18.16999995
| 3s+1=10 | | 7x-7=80 | | -55x+7=27 | | 8=6.7+v | | -9=x/-3 | | 1224=(70.5+65.5)h/2 | | 5x+2x-(9)=40 | | -2x+2=-2y | | 3x+2x+5=25 | | y=x(200-x) | | 2(n-5)/4=2n-1/3 | | -4k^2-2-8k-3=-3-5k^2 | | 13x-60=8x | | 9(h-1)+j=11 | | -50=25x | | j/71=58 | | (1-4x+3)=(3-4x-7) | | 43xh=817 | | 80-x=35.5 | | 7-3[2-(4x+5)]= | | 4x-12=12-4n | | 3(x+4)+15=6-4x | | 15=x-5 | | -5y+3.5y= | | 70e-20e= | | 7y=2-3x | | 2(x-4)+y(2x-1)= | | z/27=62 | | 3y-6=7y-34 | | m+6.6=16.08 | | 4x-9-6x=-25 | | -4/5(20x-20y) |