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*z)/10-1 = -4 // + 4
(4*z)/10-1+4 = 0
2/5*z+3 = 0 // - 3
2/5*z = -3 // : 2/5
z = -3/2/5
z = -15/2
z = -15/2
| 0.5(4d+10)=20 | | 1x-7=4+12x | | 8=-3x+b | | (2.42)(8.82)(4.23)= | | 3a+8a-17=15a+28 | | 12/23=(25/3x) | | 1/7-3/7y-4/7 | | 9x+9+x+36=5x | | 8x^2y-36x^2-10y+45= | | 12/23=25/3x | | 8x-2x+6=5x-5 | | 12/23=25/3x | | 24-5d=4 | | 21x-7=16x+8 | | x-x^2=-16 | | 3(5c+6d)-2c(d-2)= | | 2x^2+4-6=o | | 6x=7x-3 | | y=25(x-4)2-4 | | x-61=95 | | 6x^4+32x^3=0 | | y/-4-5=-8 | | =25(x-4)2-4 | | x^52=1.5 | | 28=14+7(1x-6) | | 8+5y=13 | | 4x+13+5x-15+y-9+y=360 | | -4+6y=9x | | 3k+2=7 | | 11+2=-15 | | C=60+3d | | 3y+8=143 |