If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
(2/5)*((-2/5)*y-(8/5))+(1/5)*y = -1 // + 1
(2/5)*((-2/5)*y-(8/5))+(1/5)*y+1 = 0
(2/5)*((-2/5)*y-8/5)+(1/5)*y+1 = 0
2/5*(-2/5*y-8/5)+y/5+1 = 0
(2/5*5*(-2/5*y-8/5))/5+y/5+(1*5)/5 = 0
2/5*5*(-2/5*y-8/5)+y+1*5 = 0
1/5*y-16/5+5 = 0
1/5*y+9/5 = 0
(1/5*y+9/5)/5 = 0
(1/5*y+9/5)/5 = 0 // * 5
1/5*y+9/5 = 0
1/5*y+9/5 = 0 // - 9/5
1/5*y = -9/5 // : 1/5
y = -9/5/1/5
y = -9
y = -9
| 2/5(-25y-8/5)+1/5y=-1 | | X+3/t=t^2 | | x+2/5y=-8/5 | | 12.4(3.4+4.3)= | | (4/9)(x+3)=g | | t^2-160+2304=0 | | (3/2+3/2)*2/3 | | 3/2+3/2*2/3 | | 5+22a=6 | | 5+22a=2+10/2 | | x^2y^2z-9z= | | -5(2x-3)-2(x-1)= | | x+sqrtx=6 | | 4(2x+8)-(7x+4)= | | =1312 | | u-7/u+3+1=(u-2/u+5) | | a^3-25ab= | | (u-7/u+3)+1=(u-2/u+5) | | 12-3(x+3)= | | 3(x-2)-x=2(2+1) | | 90+y=150 | | x^2-8x-24=20 | | 10x+5-12x-8= | | 3.1+x= | | (6x-18)/(8x-24) | | 6x-2/3=5x+2/4 | | z^2+4z-33=0 | | -11*11= | | (3x+3)(4x-1)=144 | | 6x^3+39x^2-21x=0 | | 12-x/2=5 | | 90-y=30 |