If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
d/5 = 80/100 // - 80/100
d/5-(80/100) = 0
d/5-4/5 = 0
1/5*d-4/5 = 0 // + 4/5
1/5*d = 4/5 // : 1/5
d = 4/5/1/5
d = 4
d = 4
| 4a/a^2+8a | | 124-3x=42x+24 | | ifx+iy=-4+-3i | | 10x-1-8x= | | 3x-5-4x= | | x+iy=-4+-3i | | k/9=10/18 | | x+iy=-4-3i | | 36/12=x/2 | | x+11x^2=0 | | 40-3*x=19 | | 25s+15=13s | | x^2+2x-130= | | 5(y+7)=y+71 | | 5y+7=y+71 | | 2x^2-7xy+3y^2-9x+7y+4=0 | | 5(12000)=60000 | | 3x^4+15x^3-27x^2-135x=0 | | -5x+3(-5x-18)=166 | | x-(4-x)=5(x+1)+1 | | 2(4x-6)=76 | | -6(4x+1)=-150 | | t^2+4-77=0 | | 2(-7x+5)=-60 | | 2-6+2(3-t)=(t-3)5-3 | | 8x^4-16x^3+24x^2= | | 5(4x-2)=-230 | | -4(3x-9)=180 | | 3+7x=5x-11 | | 6x-6=57-x | | 5ln(x+6)-5ln(x)= | | 4x+10=7x+37 |