If it's not what You are looking for type in the equation solver your own equation and let us solve it.
20000*e^4*x
H = (4/5)*(220-a)
3*(x+4)
250.833*x+15.616*y-8409.624;15.616*x+5.432*y-722.36
8*cos(x^6)
| H=4/5(220-a) | | 12x-2y=-14/3x-3y=9 | | 3k-3+x=3 | | 10(s-89)=40 | | 180-x=42 | | 2(3x-1)+2=4-3(x-5) | | 0.1375a+0.7084584=0.1217 | | 24-2y+3y=32 | | 7h+3=2h+28 | | 7b+3=17 | | -5x-x+56=x+15 | | 4+z-(3+2z)=-z-3(5-2) | | 5=-4+3v | | 24-3y+2y=32 | | 19x-4(5x-7)=38 | | 9x^2/144-4/25= | | 3×7/8 | | -1-(4/9)y7 | | -3(x-5)=25 | | (7m-5n)(2m+5)= | | 12x-(9x-7)=31 | | -15-x=15-2x | | -54/2 | | -44=-y/6 | | w^2+13w+36=100 | | 9x^3+18x^2-27x=0 | | 10-X/3 | | 2(3x+4)=2(x-15) | | 2(y-3)=4y+12 | | 8w+9z=72 | | y=7+3 | | 3x-5(x-5)=-9+4x+4 |