If it's not what You are looking for type in the equation solver your own equation and let us solve it.
c in (-oo:+oo)
-15 = (4/5)*c+9 // - (4/5)*c+9
-((4/5)*c)-15-9 = 0
(-4/5)*c-15-9 = 0
-4/5*c-24 = 0 // + 24
-4/5*c = 24 // : -4/5
c = 24/(-4/5)
c = -30
c = -30
| -34=n+15 | | 10=3-7y | | 155=35x+50 | | 2-3+=3+-4 | | (x*0.23)+x=3000 | | -3-5=13 | | 235=4x+75 | | 3-h=7 | | 10*x+19*y-x-20*y= | | 1/3x+9 | | 9x-2x+25=8x^2+8x | | -38-(-13)=x/6 | | -2(9w-2)+8w=-4(w+3) | | -2(9w-2)+8=-4(w+4) | | 168=21/2(-11+l) | | 115=40+b | | 7(u-3)-7=-3(-8u+8)-9u | | 6x=56-18 | | 4^6*x^8y^-2/4^7*x^4y^-2 | | 4^6x^8y^-2/4^7*x^4y^-2 | | 5n-10n=0 | | 3x+6=12x-4 | | -6*(-7/3) | | 24+3x+7=-2 | | f(3)=2(3)+5 | | 9-y=287 | | 17-2z=3z-23 | | 2n+10n=6n | | 7y+14=5y+21 | | 5n+4=-25 | | (2/3)+g=-(2/3) | | 5(1-3h)=50 |