If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(2/5)*x-3 = 5 // - 5
(2/5)*x-5-3 = 0
2/5*x-8 = 0 // + 8
2/5*x = 8 // : 2/5
x = 8/2/5
x = 20
x = 20
| 9a^2-56a+12=0 | | x^4*x^14= | | 2x^2+4-7=0 | | 1+3x+2x=1 | | 3+y=15 | | b^4*b^14= | | 5x+1=4x+23 | | 2y=19 | | -40=8(2+v) | | (3a^4)*(-2a^3)+(4a^2)*(a^5)= | | 1.25(x-72)=250 | | xy=122 | | -13=2x+3x+2 | | -7x^2-4x+629=0 | | -35+8+y=-13+15 | | 100/500= | | 0=7x+1 | | 6y^2+12y+2=0 | | r^2+r-182=0 | | 3x+7=y+13 | | y^2-1= | | 4x+3x-7=21 | | 6y+2y=40 | | 3(6+5x)=-12 | | 0=7x+2 | | -.2c-3=0 | | 32-8n^2= | | 9y-8y-6=9 | | 5y+4+3y-9=11 | | 27x^2+108x-3780=0 | | 3/7k=6 | | -9y-8y-6=9 |