If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3(f-8)+6(f-12)=12
We move all terms to the left:
3(f-8)+6(f-12)-(12)=0
We multiply parentheses
3f+6f-24-72-12=0
We add all the numbers together, and all the variables
9f-108=0
We move all terms containing f to the left, all other terms to the right
9f=108
f=108/9
f=12
| q5=10 | | 23y+104=19y | | 19x11=204 | | 15+7z=4z+6 | | 3l+3(l-5)=145 | | 2/9x+1/5x=32 | | 2(1.6y)-1.33=-y+413 | | -5+4.4+3.3z+0.3z-4= | | 78+(3x-12)=6x+12 | | -.67x+.47x=4.4 | | 7b^2+22b-24=0 | | 14-(2x+5)=-2x+8 | | 3(c+5)=30+5c | | -4.9x^2+3x-1.4=0 | | 4+11n-1=5n+66-3n | | -.63x+.43x=4.6 | | 6d-8=14+3d | | 3.1x-14.45=2.6 | | -.75x+.55x=6.2 | | 3.3x-14.35=7.1 | | 2.1x-8.84=8.8 | | 3t+4=12-8t | | -.62x+.32x=8.4 | | 16-12c=0 | | 7x^2-3x-8=00 | | 45+2k+5=180 | | .62x+.32x=8.4 | | (8-x)-x=92 | | 3m-90=36 | | 6(x)=-0.2x^2+2.4x | | 4d=136/7 | | 6=-0.2x^2+2.4x |