If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f(18)=13
We move all terms to the left:
f(18)-(13)=0
We add all the numbers together, and all the variables
f^18-13=0
We do not support efpression: f^18
| 5=1/3(x-7) | | 8.4v+8.58=7.8v | | -0.54x+0.34x=4.6 | | f/7-23=-25 | | 6(z+3)+3z=-36. | | -8/17=11/17-5x/17 | | 3x^2+36x=660 | | -30+6x=5(x-7) | | a-7/6=-11/8 | | 15y-12=12y | | 38b−34b= | | 7x+8+17x-3=175 | | 2*3^(x+1)-4*3^(x-2)=450 | | 3x^2+36=660 | | -10(x-7)=-3 | | 5=r–3+6 | | 9=9(w-5) | | 7x^2+23x+11=0 | | 5=31 (x−7) | | 2+15f=14f+20 | | -20=4(v-6)-6v | | 11+5x+2(x–5)=8 | | 2x+1+5x+5+90x=180 | | (4x-39)=(x+9) | | 19r-9r-7r-r=12 | | (w+10)2=12 | | 9-3x4=0 | | 9.8t+12.88=-12.28+6.4t | | 4(4n-5)=2(8n-10) | | 5x^2=1620 | | 6s=7 | | 21=¼x |