If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12f+7=43
We move all terms to the left:
12f+7-(43)=0
We add all the numbers together, and all the variables
12f-36=0
We move all terms containing f to the left, all other terms to the right
12f=36
f=36/12
f=3
| 8x−2=9x−7 | | 8(x-1=8x-8 | | 11x-3x+20=12 | | 7.4x•3-9=6•74x | | -4/3y-2=1/4y-2/3 | | 3x+20=2x-50 | | 10x+6=9(x+5) | | 6H+2=34h2-4h-2 | | (t-49)/5=(88.2-t)/9 | | 3/10=x/x5/2 | | 48*2=x | | 5=x/5+9 | | -7(-3u+5)-2u=7(u-4)-9 | | 48x2=x | | 2-8x=-54 | | (v^2+6v+8)=0 | | n=3.37n+6 | | 3(d+1)=3(3d-9) | | 3(v-4)=3v+2-4(-3v-1) | | (3v-27)=0 | | (8x+6)°=62 | | (3v-27)(v^2+6v+8)=0 | | 23(c-1)+2(3c+1)=-(3c+1) | | -7(2x-4)+6=-14x+34 | | 46=-6t-8 | | n+9=2/3(2N+11) | | -3w-13=2(w+6) | | 4-(-8)=x | | -7x+5(x+4)=16 | | 28+g=48 | | 3l-10=5 | | 2aX7=42 |