If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5f+19=89
We move all terms to the left:
5f+19-(89)=0
We add all the numbers together, and all the variables
5f-70=0
We move all terms containing f to the left, all other terms to the right
5f=70
f=70/5
f=14
| 24=-3(-e-3) | | v+v+72=180 | | R+3d=39 | | 15.15y-5.15y-10y=8 | | 3/4a+12=30 | | v=v+72 | | -(3x+1)+7(6x+6=37 | | -55=25+m | | ⅚y+1=⅓y+⁷/⁹ | | 2x+7=17-7x | | 6b-6=8(b+1) | | -8x-8=11x+8 | | 28=6x+16-2x | | -10=v+5 | | c-3+(c+26=2c) | | X+(x*0.7)=34 | | 56=4(n-69) | | -8x+8(3x+4)=-25-3x | | 6=z-26/9 | | x-5.1=6.18 | | 92=4(k+15) | | 7y+5=7y-3 | | 3y+2y+6=21 | | -3-a-2=7a+15 | | 15+51.45x=53.95x | | -7x-1=-9x−17 | | 17+2.6n=30 | | 6/z=3/5 | | (6x+9)+(10x-27)+((6x+9)+(10x-27)-180)=180 | | -8=y | | -6.3x=-4.2 | | 2x(x/2-21)=180 |