If it's not what You are looking for type in the equation solver your own equation and let us solve it.
87=6z+9
We move all terms to the left:
87-(6z+9)=0
We get rid of parentheses
-6z-9+87=0
We add all the numbers together, and all the variables
-6z+78=0
We move all terms containing z to the left, all other terms to the right
-6z=-78
z=-78/-6
z=+13
| 12x-12=15x-11 | | -6(10x-14)=-296 | | 5a-32=-8 | | 3(x+2)-1=3x-5 | | 32-5a=-8 | | 2n=1218 | | 11x-11=2x+97 | | 21-7a=18 | | 0.666666667(x+13)=22 | | 0.7(s+–10)+–9=–2.7 | | w=11(10/8*45)+58.8 | | x^2-64=0 | | 5.4(w-2)=32A | | n9-9=1 | | 2x+6=5x–10 | | 12=4(j+18)+–4 | | m-1=19 | | 3^c=2+c | | -27=p-34 | | =4x–5≥2x+17. | | 18−5x=7 | | 3x+28+5x+52=2x+10 | | 3+x=12-4x | | 14.4=—2.4b | | 8+1.7r=-2r-4-0.3r | | x3x+1=2 | | −4(b+5)=16 | | x/3x+1=2 | | -2x+8=6x | | 003x+1=2 | | (3x+8)/3=24-5x | | 10x+2+9x+18=90 |