If it's not what You are looking for type in the equation solver your own equation and let us solve it.
16-5f=31
We move all terms to the left:
16-5f-(31)=0
We add all the numbers together, and all the variables
-5f-15=0
We move all terms containing f to the left, all other terms to the right
-5f=15
f=15/-5
f=-3
| -8+2u=-16 | | 7-3t=-5 | | 10=7.33(1.04^t) | | 16-5f=-34 | | 21-7t=14 | | -7x=7x+28 | | -9=v/3-3 | | -u/5=20 | | -1/6x-7=-4 | | -36=-x/4 | | 13-2c=6 | | 8(1+3x)=176 | | 30-5g=27 | | x+14+x+13=15 | | 4/5w+6=14 | | 0=9+3y-X | | 43-12c=19 | | 16-5z=1 | | 3v-13=29 | | 30-2x=14 | | F(x)=4x^2-3x+7 | | 15v-11=4 | | 15v-11=14 | | x=-3/5-2/5 | | 6t+4=10 | | x=-3/5+2/5 | | 10-3u=u-10 | | 3z-(z+4)=5z-11P | | 3x+2+35+52=180 | | 4x+19=-x+4 | | -6=-2-r | | -5m-8=7 |