If it's not what You are looking for type in the equation solver your own equation and let us solve it.
S in (-oo:+oo)
(3*S)/4 = 20 // - 20
(3*S)/4-20 = 0
3/4*S-20 = 0 // + 20
3/4*S = 20 // : 3/4
S = 20/3/4
S = 80/3
S = 80/3
| 3.6x-17.74=5.3 | | 5x+7=9x-9 | | 3.5x+3.75y=42 | | 8x+6y=4x+15 | | (5^2-3*5)/2 | | 6y-7=15y+65 | | (X^3)+(3x^2)-3=0 | | 7x-(5x+5)=11 | | 5n+18+2n+29=180 | | 3x^2+12x+180=0 | | r+3d+2=45 | | r+3d=45 | | 13x-4(3x+2)=-6-12 | | 6ab(5)(-2)= | | -4x^2-4x-7=x | | 2(4x-5)+x+7+4x+1=180 | | -4x^2-4x-7=-31 | | 23x+11y=17 | | 90+2x+7x-9=180 | | a^-5/64p^11 | | -4(4y-8)+2(3y+5)= | | 5(2y-3)=12 | | 4[0.5-2.5]=0 | | 2x+3x-9=36 | | 25-(x/3)=x/2 | | 2.5=7 | | x-20/x=1 | | 95/100 | | 1/4x-8=48 | | 18-[x]=10 | | 50/x=1.43 | | 2x-75= |