If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-0.8f+-4=-12
We move all terms to the left:
-0.8f+-4-(-12)=0
We add all the numbers together, and all the variables
-0.8f+8=0
We move all terms containing f to the left, all other terms to the right
-0.8f=-8
f=-8/-0.8
f=+10
| 5/6X-2y=21 | | -4/5f+-4=-12 | | 1+2x=-5-7x | | -3-4x=2x+9 | | -0.8f+1.25=-12 | | -4/5f+1.25=-12 | | -36-6=n | | 3w+15=24 | | 4(3a-5)=5(5a-17) | | -8-96=n | | X²+4x+5=0 | | X+(-1.25x)=0 | | 6(c-18)=-66 | | 2x-14=-11x+4 | | 2+1.66a=-4 | | 0.15=x+(0.14-x)1.25 | | 15-180(55)-x=0 | | 2/5x-3=x+9 | | H=35t-4.9t^2+12 | | 5+x+3x-x=2x+9-9-x | | 4y-2=(6-y)=6 | | 2x(4x+5)-3(4x+5)=0 | | 2x+25=17-4x | | 4/5k=-10 | | 4(y-5)-7y=-11 | | 96÷n=8 | | 2x(4x+7)-3(4x+7)=0 | | 3m+27+4m-6=16 | | 5x-3x+x+8=2x+1+x+1 | | e1=475 | | 2525-n=35 | | 3x+30=189 |