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)
4*d = 2/5 // - 2/5
4*d-(2/5) = 0
4*d-2/5 = 0
4*d-2/5 = 0 // + 2/5
4*d = 2/5 // : 4
d = 2/5/4
d = 1/10
d = 1/10
| 3/7d=5/15 | | 6(4s)= | | 12x-18y= | | s^2=16/9(20) | | (12W^2X^4/18W^2Y^5)^4 | | 7.5x+0.5x=15 | | 2t+3t=20 | | 12t-6r= | | (5a^2-2a^3+8)6a^4= | | x^2+y^2+8x-4y+12=0 | | 6xsqaured+13x+6=0 | | 3x-2(5x+18)=13 | | 9x+9y-18= | | 1+0.20y=1.5 | | Sr-St= | | 4x^3+6x^2-10x-3=0 | | 3+4i=(x+yi)(1+i) | | (-4y-5x)(5y+3x)= | | (c+7)+2= | | (-k^2/5k^3)^-3 | | 1+0.20y=15 | | 9cos^3(x)+9cos(x)=0 | | 9(2y+10)= | | 4(3h-2)=3h+46 | | 38=4w-25 | | 180-28.4=2x | | 3x+5=-2(x-9)+7 | | -3(4n+4)=3 | | -5=2u+3 | | 7c=4 | | f(-6)=8(-36)+10(-6)-8 | | 5c+5d= |