If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9-z+3-2z=0
We add all the numbers together, and all the variables
-3z+12=0
We move all terms containing z to the left, all other terms to the right
-3z=-12
z=-12/-3
z=+4
| -2x+3(-6x-14)=198 | | 12-1z-2=0 | | 3x+17=x-21 | | -8d-5d+7d=48 | | x-21=3x+17 | | 2/9i+2/3=2/5 | | 7+2(y+1)=9+2y | | (8x+26)÷5=0 | | 2/9(i+2/3)=2/5 | | 2x(.6)=32.3 | | 12x^2-88x+40=0 | | Sx7+33=187 | | 32u^2-50=0 | | (x+1)/x=12 | | 11+8x=5x+6+3 | | 12x-8x-8=-52 | | 9(x−9)=63 | | 2-5x=3(2-x | | 1/5x=(1/4-x)-4*(1/2x-2) | | d^2=2d+120 | | 7x-12=5x+14 | | 3(x-1)-2(x+3=0 | | x-11=2x-22 | | x+(x-x(.4))=32.4 | | 2x^2-13x=14x-36 | | -3x^2+52x-169=0 | | 3/5=n-2/10 | | 2.5+22=4x+10 | | (2-z)(3z-5)=0 | | -72x^2+104x-20=0 | | -3x+52=4x-4 | | 5s=6 |