If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
(4/5)*a-5 = 0
4/5*a-5 = 0 // + 5
4/5*a = 5 // : 4/5
a = 5/4/5
a = 25/4
a = 25/4
| 9x=10y | | 7.8x-4=6.8x | | (x+2y)dx+(2x+3y)dy=0 | | 4/5w+3=9/5w | | 5.2=1.3x | | 3[x+-1(4x+-1)]=3(2x+-5) | | 12x^3-16x^2+9x-12=0 | | -35x^2-29x-6= | | 3x-(4x-3)=56x | | 0=15x-46 | | 10y^2+9y+2= | | -10/3x+10=-8/7x-8 | | -37-16y+12=30y+59+8y | | 40x^3-25x^2+8x-5= | | 15-6x=-21+3x | | 26-7x=2-4x | | 1/3p=p-1 | | -t^3+2t^2+8t= | | b^2-4b-21= | | 31/2x=5x-8 | | 7-0.5+5y=9 | | -3x-4y=-19 | | lnx+ln(x+6)=ln(x+24) | | 1/2x=5x-8 | | 950-z/2=987 | | 3(5+7)=9 | | (5-7)=9 | | 1/4*46 | | 1/4*46+23 | | 3(5-7)=9 | | 0.06-0.0(x+1)=-0.02(2-x) | | 2(3x-3)+2(x-3)=2x-1+2x |