If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2f-685=85
We move all terms to the left:
2f-685-(85)=0
We add all the numbers together, and all the variables
2f-770=0
We move all terms containing f to the left, all other terms to the right
2f=770
f=770/2
f=385
| 70=7w-82 | | 2y-8=234 | | 4x+5=x+x+x+x | | 1=w-95/3 | | 17=4f+1 | | w5+3=12 | | 228=190x | | 4x-6x-30=15 | | –2h−15h−h=18 | | .4x+2(2x+4)=8 | | 29=—8v-7+5v | | 5x-3x+5=3+2x+2 | | 20x=540 | | 3x+99=33x-99 | | x+16+x+12+-2x-2=180 | | –6n=–7n+2 | | 4=3f-14 | | F(7)=3x+2 | | x+16+x+12=-2x-2 | | f/2+(-8.9)=(-10.9) | | 5x+13=6x+20 | | x+7x+24=180 | | 228=10x | | 70+x=(2x-2) | | -6+7x=4x+12 | | 5x-4(1+2x)=8 | | w/3-(-5)=5.4 | | Z=-4j | | -80=-20+x | | m/3-5.26=(-4.06) | | x+12+x+18=180 | | 39=5x+19 |