If it's not what You are looking for type in the equation solver your own equation and let us solve it.
13f=1.55+13.1f
We move all terms to the left:
13f-(1.55+13.1f)=0
We add all the numbers together, and all the variables
13f-(13.1f+1.55)=0
We get rid of parentheses
13f-13.1f-1.55=0
We add all the numbers together, and all the variables
-0.1f-1.55=0
We move all terms containing f to the left, all other terms to the right
-0.1f=1.55
f=1.55/-0.1
f=-15+0.05/0.1
| 126•x=66 | | x^2+137=-10x | | -15y+20=-20-11y | | 0+9y=2 | | 2.236(200-x)=x | | -5+3d+15d=19+6d | | -7.5p+8.48=10.9p-2.95+2.5p | | 34-5x=72+6x | | 5-3x+3=20 | | ||3x−4|−5|=1 | | -5j=14-4j | | 4(2c-1)-4=5c+5 | | 19.34-2.42x=3.5x+2 | | 9x+46+7x+34=144 | | 9+-x=78 | | -x/9=-x | | 65⋅t60=60⋅(t+10)6065⋅t60=60⋅(t+10)60 | | 13+10p=-9+12p | | 16/40=x/31 | | 13h-2+8h=20h-9 | | 4x+27=3x-1 | | 6x-+x=36 | | –1=q+12 | | -4.8d+11.47=5.69-12.6d | | 6x+x=37 | | 4n+17n-17=19n+13 | | n+n/20=36 | | 3x+27=80 | | 4x=10=90 | | 7/3x1/3x=4+5/3x | | 3k=5k-14 | | 8-2(x-5)=-3 |