If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f in (-oo:+oo)
(2/3)*f-8 = 10 // - 10
(2/3)*f-10-8 = 0
2/3*f-18 = 0 // + 18
2/3*f = 18 // : 2/3
f = 18/2/3
f = 27
f = 27
| X^3-x^2=70 | | 6a-12=-24 | | J=G+Grt | | 2x-10=14-10x | | u+5=13 | | 2x+8+9x-4=70 | | 8(3+9k)=-18 | | 27=-8.05-54y | | (14x+2x)=5 | | .75c+(0.50)(500-c)=210 | | -2x-3/5=8 | | (3+2i)(3-2i)= | | -3/20+1/4k=k+3/4-3 | | 3/2y+1=0 | | x^2=11x+21 | | 12x=-3(x+5) | | -(3x+14)-7x= | | 1/5(-15+x)=17 | | 24=3-4x-7 | | 5(x-1)+2x= | | 4-3x=2x+6 | | 38x-3= | | x+2x=3x+2513+6x | | -9-(2-5c)= | | -49=-7c | | -142=-11x | | 4-2(5-b)= | | 24x^2-11x-18=0 | | 5(x+3)-3=x | | x-3(x-2)= | | a+x*x=6 | | 2/5(5k+3)-8=12 |