If it's not what You are looking for type in the equation solver your own equation and let us solve it.
s+12=9
We move all terms to the left:
s+12-(9)=0
We add all the numbers together, and all the variables
s+3=0
We move all terms containing s to the left, all other terms to the right
s=-3
| 17-1x=1/3(15+6 | | -3/7y-9=11 | | -36=3/4n | | 6x+9x-80=60-5x | | 1/2g+14=13 | | 2x5=9/15 | | x^2+85=−14x | | -7=-1x/3 | | 0.005xx=1 | | 180−3x=6x−40+x+20 | | 3=|z+7| | | 2/3a-1/6=1/2 | | 3=p+4 | | c²+2c+9=0 | | 128-2x=175x+13 | | x=1/72 | | 6(w+5)=-4(5w-5)+8w | | x=-2+0.55/1 | | x-7=14,x=21 | | x=(3x+5)/(7x-6) | | 5(4x-11)=14x | | (x)=(3x+5)/(7x-6) | | 7x^2+24x=9 | | 5x+7x-6=90 | | 1/2x+3=3.2 | | 6z-134=64 | | 17(12x-7+2x)=7 | | 45.5=(2x)^2/(0.50−x)(0.25−x) | | 4(y+-4)=8 | | y–7=0.5(–4) | | V+v=-8 | | 4n+1/3=3/4 |