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)
9-((5*z)/2) = 0
(-5/2)*z+9 = 0
9-5/2*z = 0 // - 9
-5/2*z = -9 // : -5/2
z = -9/(-5/2)
z = 18/5
z = 18/5
| 3x+5x+7=9x+4 | | 1/3-3y/4=0 | | (4z+4)(17z-1)=4+(34z+4)(2z-1)+6z | | (3-7m)+2(3.5m+1)= | | (-14z+1)(5z+4)-(-35z+3)(2z-1)=5+2z | | (8z-1)(-20z+5)=(-80z-5)(2z+3)-5+6z | | -19(-4z+13)-10z(5z-15)=-2z(25z+16) | | 5x+5x+7x-3+10x+10x-5x-20= | | 9y-4(3y-2)+6(y-3)=32 | | 3x*9=27 | | -13y(-6y+13)-3(16y+11)=39y(2y-10)-8 | | -15y(17y+4)+7=-7(-7y+9)+3y(-85y-4) | | -11(-5x-5)=18(-12x+4)-5x-16(-19x-4)-10 | | 6+3x-2(x+4)=20 | | -9(5y-4)-8+15(10y+11)=8-9(-11y-7) | | 11+9(8z+16)=-6z+5-19(4z-9)+11(5z-10) | | 4/(z+2)-1/(3z+6)=11/9 | | y^4+y^3+2y^2=0 | | 6x+2=5x+6 | | 2x-3/6+3x-2/4+5x+6/12=4 | | 75=3(10t-3)6t | | 2+5x=7+4x | | -x-4=-2x | | -18(13y+12)=-17+16(13y+8)-15(9y+17) | | 2.X-4=140 | | 2xX-4=140 | | 8(x+7)=-72 | | -13y-25y=16y-19 | | 3x+3-3=9 | | -15y=-23y+8-24y | | 3/4(x-2)=21 | | -12z+25z-23z=15z-16 |