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)
(2/5)*a = 18 // - 18
(2/5)*a-18 = 0
2/5*a-18 = 0 // + 18
2/5*a = 18 // : 2/5
a = 18/2/5
a = 45
a = 45
| 5x-6=-56 | | 13a+18b+2c+4c-6b-2a= | | -8+6x=-8 | | t=Y^2-4/Y-2 | | N-67=21 | | 5(3+2x)=9(x-1) | | -1/3x=16 | | 111/21=m+2/3 | | 2/3-5a=5/12 | | 36+n=94 | | (3a-5)(3a-5)=25 | | 7+8x=6x+5 | | 3-x=4x+23 | | b2=25/36 | | (11/5)x=0 | | y-50=9(x-10) | | 20p+14q+p-7q-3p= | | 8(t)=2t+1 | | 5x-3=45-x | | 4(x-5)=60-6x | | 2x-9=81-8x | | 2x-9=81x-8 | | 12x-21=8x-41 | | 2(3+n)=20 | | 22x+11=0 | | a/5+1=9 | | 5(9+2)=45x-3 | | p-34=-350 | | x+16=x(12+x) | | 3x/11+4x/11=5/11 | | 5r^2+7r+2=0 | | 5r^3+7r+2=0 |