If it's not what You are looking for type in the equation solver your own equation and let us solve it.
23-2z=15
We move all terms to the left:
23-2z-(15)=0
We add all the numbers together, and all the variables
-2z+8=0
We move all terms containing z to the left, all other terms to the right
-2z=-8
z=-8/-2
z=+4
| 23-@z=15 | | 1/4+0.5x=1.5 | | (1/4)x+4/5=(3/4)x-(1/3) | | s-82/2=5 | | 2(x+6)+3=9+5 | | 6x+8-2x=-4(2x-3) | | 14x+18=32x+40 | | 6c+2=68 | | 9-e-7=7e-11 | | 3y-6=25 | | 13+(4-7x)=5 | | 8=q/7q= | | 4(x+6)(x-10)(3x-6)=0 | | 4x=224A.56 | | 3f+4-2f+6=0 | | 81+n+37=46 | | 25=5y-7 | | Y/2=x-0 | | 13+(14+x=) | | 1c+12=-10 | | 17-x=20 | | -8=32-5r | | 6x+2x=120 | | 4=2x-3=7 | | m=5/13 | | w-1.55=4.29 | | v+1.2=8.48 | | F(x)=4+7x^2 | | v=1.2=8.48 | | -16w^2-64w-64=0 | | y+3.1=5.54 | | 12+6x-7x=3x-2 |