If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
4/12 = z-2.3 // - z-2.3
4/12-z+2.3 = 0
2.63333333-z = 0 // - 2.63333333
-z = -2.63333333 // * -1
z = 2.63333333
z = 2.63333333
| 10=(3)(0.5)/x^2 | | 2u-u-u+5u=15 | | 9a-9=a+7 | | 27a-3b=204c | | x*2=404 | | 3u+9=7(u+7) | | 3=(10)x/0.5 | | 6.24=9.31-x/0.300 | | 3x-2=2x+.04 | | 4q+7q-2p+3p= | | 4.7x=2.5+8 | | 55x-77=-27x-21 | | x=40-9y | | [4y+12]=24 | | 7x+3t+x=16+3 | | 62x+14=0 | | 3n-10=10+n | | 3(5x+2)=4x+17 | | 2(x-4)=22-6(4x+1) | | -2(-7k+4)+9= | | x=50+0.75 | | -7+7v=6v | | 2(x+2.10)=17.40 | | x+(x+18)=1000 | | x^2-9x-9292=0 | | 5(2y-1)-3(2y)=10 | | 4q+6=3q+10 | | 63=2(4x+7)+3(1+5x) | | 6.2=3d-8 | | 9d-10=8d-2 | | 49-21x=-x-11 | | 3(3n+3)=6(7n+1)+3 |